Hannah Montana star Miley Cyrus has hit back at critics who called her fat after she joked about her thighs being wobbly.
The comments were made after pictures were taken of Miley wearing a swimming costume on a beach where she was enjoying her holidays.
The star has a tough message for the people who put up nasty comments of her on the internet - cyber-bullying is wrong.
But that made us think, have you ever been bullied because of the way you look? Do you think people say things on the web or via text that they wouldn't if they were face to face with you?
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"My Mum and friends have made fun of me for my big lips and I personally hate that. It hurt so bad I wouldn't go to school for a couple of weeks at a time. Bullying should stop!"
Haley, 14, Michigan, USA
"Everyone in my school is normally nice to each other, but there are some girls who live near me who call me fat and say I need a diet, but I just ignore them."
Izzie, 10, Wales
"Sadly, yes I have been bullied for my looks but at the end of the day I don't care because if you think about it they will bully you because they're ugly themselves."
Joanne, 10, Edinburgh, Scotland
"I used to be bullied because I have autism but now I am in high school it has stopped."
Sarah, 14, New Zealand
"I was bullied by someone in my class because they were jealous about the way I looked. They made me feel horrible and ugly, they were definitely not a friend."
Georgia, 13, Cardiff, Wales
"I know how it feels to be bullied but I think Miley's making it worse - she has shown the bullies that their comments have bothered her so they'll keep going!"
Annie, 11, England
"I have been bullied before, when I heard my friends talking about me so I made some new friends. But then things got worse so I told my mum and she sorted it all out."
Katie, 11, Yorkshire, England
"People laugh at me because I have ginger hair and I hated it so much I dyed my hair. No-one knew that I was upset because I put on a brave face and I acted like there was nothing wrong. But you should never do that because it doesn't help. I've learnt to be proud of my hair."
Alysha, 11, London, England
"I bet I am not the only one who's noticed that bullies usually have been teased/bullied themselves about how they look -so it makes them feel good to do it to others."
Sophie, 11, Sussex, England
"I've been bullied for who I am. But don't worry if you do get bullied, they do it because they are bored so they think it's OK to bully people. I know it hurts you, but it will not last long if you ignore them and stay strong."
Stephanie, 12, UK
"I think that people who bully other people are cowards and lonely."
Zoe, 11, England
"I've been bullied for my height - because I'm a lot taller than all the people in my year, but it's not something I can do anything about! I can't stop growing! I just ignore people when they make comments about my appearance, I have no time for them!"
Mairi, 13, Glasgow, Scotland
"I've been bullied since I started primary school. But I have loads of friends who accept me for who I am. All you need to do is stick up for who you are."
Amy, 13, Peterborough, England
"Yes, I got bullied because I wore sporty clothes unlike like the rest of the girls."
Michaela, 10, Newcastle, England
"I think being bullied is mean. If I got bullied I would ignore them and show them I don't care."
Kayleigh, 11, Liverpool, England
"Bullies are just sad about their life so they try to ruin other people's too. Don't listen to them because it does not matter what they say about you, it's what you think about yourself that matters."
Melissa, 10, Scarborough, England
"Why do people have to be bullied? I get bullied about my hair because it's curly."
Lucy, 9, West Sussex, England
"I don't like Miley Cyrus's music but it is admirable that she was able to stand up to her bullies."
Rory, 11, Belfast, Northern Ireland
"I also know how it feels to be bullied. I think Miley is making it worse though, it will show the bully it is bothering her so the bully will keep going!"
Anni, 11, England
"I was bullied when I was 11 for about seven months and was nicknamed 'Eiffel Tower' because I was 6ft tall at 11. Miley, don't mind them, they're just jealous of how pretty you are!"
Katie, 14, Ireland
"Yes, I've been bullied, because I am small for my age. People can't help being small you know!"
Niamh, 10, London, England
"I've been called names because I'm quite chubby, but then the bullies say sorry to me and we all laugh about it later on. I think people who are being bullied should stand up for themselves."
Agne, 10, London, England
"That is so ridiculous! Miley's thigh's are SO not fat! I haven't ever been bullied but that is totally out of order!"
Scarlett-Marie, 13, Manchester, England
"If people say bad stuff about you, try to think about your friends and happy places or when they did something nice to you."
Ranna, 9, Manchester, England
"I've had people coming up to me and saying I'm fat when I'm practically a walking flagpole. It's just pathetic."
Amy, 13, Kent, England
"I haven't been bullied properly but I have been called things like four eyes because I wear glasses. I'm worried because I might need to get braces soon and I will probably get bullied about that."
Merryn, 12, Birmingham, England
"Cyber-bullies are cowards. They're too afraid to say what they think to the person so they hide behind a name (probably fake) on YouTube or something. It must be horrible to be enjoying a holiday and then having people take pictures of you, post them on the internet and then make nasty comments about them. I'm glad Miley Cyrus isn't listening to them - she's so not fat!"
Molly, 11, Ipswich, England
"Miley is definitely not fat. They probably just said that because they were jealous."
Jessica, 11, Devon, England
"People are only saying you're fat because they're jealous. Don't let them get to you - you know you're not fat."
Joe, 13, County Durham, England
"Are they crazy? Miley's not fat! Just healthy. These bullies OBVIOUSLY like skinny models. Miley looks happy, and best of all, healthy."
Laura, 9, Warwickshire, England
"I was bullied because I wear glasses. But when I told my parents about it they got it sorted. People who bully others are just pathetic and insecure!"
Hannah, 12, Suffolk, England
"Good on you Miley for sticking up for yourself!"
Cathy, 12, Northern Ireland
"I was bullied for three years but then my old friend helped me stand up to my bully. So, Miley, find a strong friend to help you through it!!!"
Lauren, 11, Staffordshire, England
"I think Miley is soo not fat; she's skinny! I have been teased before because I where glasses; they call me fours eyes but how can I have four eyes? Miley, just don't listen to them. They're probably jealous!"
Lucy, 11, England
"When I was bullied at school this girl used to say hurtful things to me but then I told a teacher and now she's one of my friends!"
Georgia, 10, London, England
"People bully me about the colour of my hair. They call me ginger. My hair isn't ginger. It is strawberry blonde!"
Chloe, 10, Northern Ireland
"I used to get bullied loads because of my glasses, and because I go to boarding school there was no escaping it! It got so bad I ended up changing schools and now I wear contact lenses!"
Tom, 10, Cheshire, England
"My best friend once said I had nose hair and a moustache even though I am a GIRL! I asked my other mates and they said my best friend was just jealous that I was so pretty. But I got over it just like Miley."
Mary-Anne, 11, South Yorkshire, England
"It would be so boring if everyone looked the same. People who pick on others because of their physical appearance have the problems, not the ones who are being bullied."
Katy, 12, West Yorkshire, England
"I haven't been bullied but a girl in my class has, just because of where her family is from."
Gabriella, 10, County Durham, England
"Yes, I have been bullied nearly all my life because of my hair and the way I look!"
Sarah, 14, Tyne and Wear, England
"Its terrible that Miley is getting bullied. I think that Cyber bullies are just cowards and ashamed of themselves so they make fun of other people. I have been bullied and it was horrible. I wish that all cyber bullies would stop."
Riya, 10, Blackpool, England
"Miley isn't fat!! You should just ignore bullies because if they have time to bully, then they have no lives at all. They should be ashamed."
Ubah, 14, London, England
"I think Miley is brilliant. I have been bullied over MSN by my friend's friend so I blocked him straight away."
Lewis, 9, Lancashire, England
"I don't think it's very kind because she's so pretty and Miley's probably much nicer than the bullies."
Jade, 9, Dorset, England
"I have been told that I was fat and ugly, but I ignored them, walked away and told a teacher. Miley you are the best and you should ignore what anyone says about you as they are all jealous of your good looks."
Ambers, 11, Hertfordshire, England
"Miley is not fat at all and I think the people who are saying she is fat are just jealous because Miley's famous and everyone likes her."
Karla, 8, Surrey, England
"I've been bullied in primary school and a bit in secondary. I have been called four eyes because I wear glasses and I've been called ugly. I think bullying needs to be taken more seriously."
Roseanne, 13, London, England
"I used to be bullied a little but I don't see any reason for Miley to be bullied."
Rebecca, 11, London, England
"I get bullied about my weight and I think it is horrible! The best thing to do is ignore them and they will stop. WORDS MEAN NOTHING!"
Libby, 9, Sheffield, England
"I have been bullied because of the way I look. I just ignore them and walk off!! Don't take any notice of them Miley!!"
Sam, 12, England
"I was bullied when I was younger, but I told my parents and my teacher and believe it or not, those bullies got scared after that because otherwise they would have got suspended."
Naveed, 13, London, England
"Miley is not fat! People always say things about me but I just ignore them. They are not worth it and they are just JEALOUS!"
Hannah, 11, West Lothian, Scotland
"I left a school because of bullying, you mustn't let them get away with it. You have to tell someone that's how I got it sorted!"
Erin, 12, Kent, England
"I think that people who bully you are mean. Just ignore them and they will stop."
Alice, 9, Newcastle, England
"I've been bullied on the school bus by the same group of people so I told my parents and my head of year and now it's not as bad."
Jamie, 13, Wales
"I get bullied because I have ginger hair. But some other girls in my school and I have started a group called the Friendship Group and it helps people cope with bullying."
Nicole, 12, Wales
"I have been bullied more than once, all because of who I am. It saddens me that children get bullied because of how they look and who they are. If you are bullied you HAVE to tell someone."
Emma, 14, UK
"I was bullied in junior school and it was horrible, so I know exactly how she feels. Well done for sticking up for yourself Miley!"
Roxy, 14, England
"Leave Miley alone! There's nothing wrong with her, I bet the bullies are just jealous!"
Eoghan, 10, Northern Ireland
"Miley is not fat and even if she was, it is not nice to be bullied like that."
Roxy, 12, Edinburgh, Scotland
"At school I have been called fat but I just ignore it because it isn't true."
Lucy, 8, Southampton, England
"Miley is so not fat. I used to be scared that I would get bullied when I went into Year 7 but I wasn't! Miley shouldn't listen to them."
Izzy, 12, Oxfordshire, England
"I've bullied because I have red hair. Don't listen to the bullies Miley, they're just jealous because you are so cute!!!"
Thomas, 10, Paisley, Scotland
"I was once called fat by a bully in a park but my friend stood up for me, that's what friends are for."
Eliza, 11, Exeter, England
"I've been teased about being fat and none of my teachers ever seem to notice, but I've learned to just shrug it off and ignore people who are rude! Cyber-bullying must stop!!!"
Rebecca, 12, London, England
"Don't worry Miley, I have been bullied and I've gotten over it by just ignoring the bullies."
Jade, 9, UK
"Miley, always be true to who you are. I been bullied by people saying I have horrible hair but I only care about what I think, not what other people think about me!"
Jordyn, 10, Walsall, England
"I was bullied when I was younger and I took it really badly and started blaming myself for what was happening but my Mum told me to believe in yourself and what you know is right. She also told me they are probably jealous so just try to ignore it."
Hannah, 11, Poole, England
"I haven't been bullied but I know how it would feel because my friend has. Miley is fantastic! If she were fat (but of course she isn't) she would still be the best."
Emma, 10, London, England
"I have been bullied, because people said I was fat. I know I'm not fat but it still really upsets me."
Becky, 11, London, England
"I have just resolved my problems with a bully; we said that we won't be friends but we won't retaliate and try not to cross each other's path."
Georgia, 10, Norfolk, England
"I've heard people being mean about the way I put my hair up, my shoe size and my weight. The worst thing is they say it behind my back, when they think I can't hear. I'm not a Miley fan, but I have a message; be true to yourself."
Charley, 11, Cheshire, England
"There are a lot of bullies in the world, we just have to tell someone before it gets out of hand. That's how I sorted it out."
Beth, 14, Manchester, England
"I get teased because I have eczema but I just let it go right past me now because I've had to put up with it since Year 6! And Miley, you're the perfect size for your age, others are just jealous! You're wonderful!"
Kirsty, 14, Ipswich, England
"Miley, you're pretty no matter what they say, they're just really jealous because you're rich and you've got a really good life. Keep up the good work."
Beth, 11, Sunderland, England
"I've been bullied many times but I ignored them."
Jack, 10, Bishop Auckland, England
"Don't listen to them Miley; I get bullied by people but you should remember you are gorgeous!!"
Maisie, 9, Cheshire, England
"I was bullied physically and verbally about my appearance! They called me fat and other names and they also hit me!! But a message to everyone else who is being bullied, and I know it is happening, you can always tell someone."
Brendan, 12, Essex, England
"I don't get bullied; when I'm on MSN I'm very careful about who I talk to and if someone upsets me I always tell my mum or dad!"
Rose, 10, Norfolk, England
"I have been bullied about my weight, but I don't listen to them. So what if you're fat, skinny, tall, small? Everyone is different!"
Hannah, 15, Northampton, England
"I think that being bullied about the way you look is absurd and completely pointless. Everyone should be happy with who they are and the people who do bully others about their shape are usually just jealous!"
Ruby, 13, Warwickshire, England
"How can they call Miley fat? They're just so sad. I was bullied once, but it's stopped now."
Alicia, 12, Plymouth, England
"I was bullied in year 3 because I have freckles, they called me freckle face."
Erin, 10, Lancaster, England
"Some of my friends and I are called ugly because we are not popular, but we just ignore it because it's not true, and we love the skin we're in."
Amber, 11, Cambridge, England
"I know how Miley feels and I feel sorry for her because no-one should have to go through bullying. A girl in my year who used to be a bully, used to call me names; It made me feel really upset but thankfully she doesn't do it anymore. Don't listen to them Miley."
Erin, 14, Glasgow, Scotland
"I was bullied because I had to wear an eye-patch, because I had an operation on it."
Clara, 9, Northern Ireland
"I think bullying is a bad thing; I was bullied for no reason, they were just bored. It's right that Miley Cyrus has stood up for herself as we all should. They only called her fat because they are jealous of her and had nothing better to do."
Emily, 12, Kent, England
"I was bullied when I was younger - I was called fat, but I wasn't even a bit chubby! Miley is so not fat, she's slim!"
Alexa, 10, Hertfordshire, England
"I get called spotty and it is really horrible because most people get spots at some time in their life."
Jasmine, 13, UK
"I have never been bullied about how I look or who I am, which is very lucky for me. I am not a fan of Miley, but bullying should be stopped."
Emni, 12, Czech Republic
"I have short curly hair and a really horrible girl said I had the worst hair ever. I said I have friends who think differently!"
Katie, 11, Yorkshire, England
"I got bullied by everyone in my class because I have one fat lip and one small one; I stood up for myself and now only one person says it when he's angry at me."
Betty, 9, England
"I have been very lucky and I haven't been bullied badly. There was once a girl who bent my fingers back if I didn't obey her! But I told my parents and they told my teacher and they got it sorted. That's what you have got to do!"
Sarah, 12, Wirral, England
"I love to sing but people tell me that I can't sing at all; they call me loads of names."
Danielle, 12, Bournemouth, England
"I've been bullied, I love you Miley; so ignore what people say."
Molly, 8, Oxford, England
"My friends stood up for me and now it's all OK."
Philippa, 12, Reading, England
"I was once called pencil because I was really thin, especially my legs. Miley, don't listen to them; they're just jealous because they're not as pretty as you."
Giana, 11, Macclesfield, England
"My head is quite big and people tease me about it, I get really upset about it, but they don't listen, they just carry on."
Chelsea, 14, Peterborough, England
"These people only hurt other people to hide their own insecurities and make themselves feel more confident. Everybody's different, we should embrace it instead of judging them!"
Lily, 12, Birmingham, England
"I have never been bullied but it's really sad whoever does it. Sometimes when people bully you, you've just got to stand up to them for it to stop."
Saamiya, 13, London, England
"I haven't been bullied because of the way I look, but I have been bullied because of how I talk. I don't really care though, because the people who bully me are immature and always in trouble."
Gemma, 11, Dubai
"I'm naturally very thin, and I get teased about it by a lot of people in my year. I really don't like it, because I can't help how I am."
Rose, 12, Reading, England
"All that matters is what you think about yourself, not what everybody thinks about you."
"I get bullied because of my hair."
"I've been called a pig because I am a bit chubby."
Polly, 9, London, England
"I get cold sores on my lip and people call me 'the germ', except my friends. The thing that makes them stop is when I do not react to it because then they think it is no fun if the person they are upsetting is not upset by their comment."
Molly, 11, Northumberland, England
"I don't think it's very nice to be bullied."
Gareth, 11, Brighton, England
"She is not fat."
Dan, 9, Durham, England
"Some people think wearing glasses isn't cool, but around my school even bullies wear them!"
Aidan, 14, Antrim, Northern Ireland
"Don't listen to them Miley; they're just a bunch of losers!"
Sumaya, 13, Birmingham, England