A true Taylor Swift country love song. She sings about a couple who went to college together and about all the fun they had.
The words and melody of the song are quite catchy; the more you listen to it, the more you'll remember it.
However, if heard too many times, it may get annoying.
Will you still be humming it next week?
It's more of a sing-along than a hum-along which everyone can enjoy, though it will probably be more popular with her female fans.
Will it make the charts?
It will definitely make the charts and do pretty well. It might not be her best song but it is sure to be a hit with her fans.
Let us know what you think using the form in the top right hand side of the page.
"Amazing single! Definitely one of her best songs and the video is nearly as good as You Belong With Me."
Frankie, 12, Cardiff, Wales
"Another brill song from Taylor!"
Annabelle, 11, Yorkshire, England
"Good song, but all her songs are starting to sound the same!"
Lucy, 12, London, England
"A smash hit I would say! Nice song!"
Yasmin, 12, Sheffield, England
"Love it! And the video isn't that bad either. It's just brilliant!"
Vinny, 12, Somerset, England
"The best Taylor Swift song by miles. It's catchy and sweet!"
Chloe, 13, Norfolk, England
"I think this is another wonderful song from Taylor Swift. It is meaningful and has a lovely catchy tune."
Clarice, 11, London, England
Leena, 11, Buckinghamshire, England
"This song is perfect and I wouldn't change a thing about it. It's so amazing!"
Sophie, 12, London, England
"WOW! It's great!"
Maria, 12, Bristol, England
"A thousand thumbs up!"
Emma, 9, Kuala Lumpur, Malaysia
"I love this song and I think it helps most people understand that some relationships are not like others."
Melissa, 12, London, England
"Taylor has had a smash hit once again! Her songs are truthful, honest and amazing! Her newest single Mine tells listeners about relationships and how your family are always there for you, no matter what!"
Lili-Rose, 12, Essex, England
Ella, 10, Sussex, England
"This track is so cool! It's about time Taylor made a comeback. I'm glad she did - she is in my top 30 artists!! Come on, who couldn't love this girl?!"
Hannah, 9, Edinburgh, Scotland
"It's a good song, but it's not Taylor Swift's best."
Meg, 9, Gateshead, England
"I've just listened to it and it is awesome!"
Marieka, 8, Hong Kong
"This song is amazing and I think it will be very popular!"
Annie, 10, Stockport, England
"Without a doubt, this song is totally rubbish!"
Katy, 10, Luton, England
"This song is exquisite! An amazing treat!"
Bella, 12, Preston, England
"It's a really catchy tune and I love it!"
Isabel, 11, Surrey, England
"I like Taylor Swift and I like her music. This song is quite slow, but I still like it!"
Kiah, 13, Somerset, England
"I love this song! It has a beautiful rhythm and I love singing it on the way to school!"
Lilly, 11, London, England
"I heard this song and instantly fell in love with it! The video's amazing and I love how she spills her heart into her songs."
Catie, 13, Bristol, England
"It's mainly like every other Taylor Swift song. It's OK. If you like her music, I'd recommend it."
Rosie, 13, England
Stella, 11, Nottingham, England
"WOW! Taylor's outdone herself. She just gets better and better! I heard this and cried! AMAZING!"
Denby, 13, Durham, England
"I love this song!"
Olwen, 9, Carmarthenshire, Wales
"I love Taylor's song, it's immense! I've met her before!
Riya, 14, Cambridge, England
"I love the song!"
Olivia, 11, Preston, England
"I've heard this song and I do love it, but I just think it's a bit romantic for me!"
Amy, 10, Renfrewshire, Scotland
Anna, 11, England
"This is one of my favourite Taylor Swift songs!"
Rabia, 12, London, England
"I love this song, it's cool."
Caitlin, 10, Newport, Wales
"I absolutely LOVE this song!!"
Chloe, 9, Wolverhampton, England
"I love this song, it's amazing!"
Lauren, 13, Exeter, England
"I really like Taylor Swift and when I heard her new song 'Mine' I thought, wow!"
Olivia, 10, Manchester, England
"It's a good song, I like it!"
Arzu, 13, London, England
Stacey, 13, Edinburgh, Scotland
"I love this song -I just can't get it anywhere!!"
Shannon, 13, Leicester, England
"It's an amazing song by an an amazing singer. Taylor Swift rules!!"
Faatimah, 9, West Yorkshire, England
"I think it is both fun and beautiful. She's my favourite singer in the world."
Lizzie, 12, Brussels, Belgium
"It's very good!"
Alice, 14, London, England
"I like this song and I've seen the music video - it's alright. It's not her best song - I think her best song is You Belong With Me - but I like the video."
Caitlin, 11, Bristol, England
"I really like Taylor's voice in this song and I think she's a very good singer."
Kara, 8, New Zealand
"She's AMAZING in this song! The video's great too! I can't WAIT for her new album!"
Georgie, 13, Kent, England
"Best song!! A must-hear! Thumbs up."
Emma, 9, Kuala Lumpur, Malaysia
"This song is amazing."
Rob, 13, England
"Great singer, great song! Well done Taylor!"
Janine, 8, Birmingham, England
"I bought this song as soon as it was out! Taylor Swift is a real icon and she sings like an angel from heaven!"
Claire, 12, Doncaster, England
"I absolutely LOVE this song. When I first heard it, I fell in love with it!"
Simi, 12, London, England
"I loved the song when I first heard it and the music video rocks too!"
Rebecca, 12, Lancashire, England
"I like Taylor Swift's new song. It's so good!"
Georgina, 13, England
"Love it. It's awesome!"
Oliva, 9, Slovenia
"Cool, cool, cool!"
Natascha, 10, Germany
"I love it!"
Hannah, 11, Northamptonshire, England
"I really like this song. It's one of her best."
Alesha, 12, London, England
"One word. WOW"
Faatimah, 9, Yorkshire, England
Abbygale, 9, Wales
"I love this song, I sing to it all the time."
Sophie, 9, Newport, Wales
"This single is so amazing."
Holly, 8, England
"I love how, when Taylor Swift sings a song, it brings out my emotions and I cry a lot. Taylor Swift is one of the most amazing people on earth."
Kyla, 14, Sheffield, England
"I really love this song!!"
Olivia, 12, Suffolk, England
"I think Taylor's new song is great and I keep listening to it. I love all of her songs, but this is the best."
Grace, 9, London, England
"It's really good. I have it on my iPod and my friends and I listen to it everyday. Lots of people say that it's too similar to Love Story, but I disagree. It's really cool and catchy and it really shows off Taylor's talent!"
Alice, 12, New Jersey, USA
"I love this song. I think it's so sweet and cute!! It's definitely one of my favourite songs at the moment. I can't wait until her new album is released!!"
Nicola, 11, Barnsley, England
"I love Taylor Swift, she's so cool. I wish she had performed at the Freedom Festival."
Shona, 10, Yorkshire, England
"I love Taylor's songs. I think Mine is one of the best songs she's sung."
Katy, 14, North Yorkshire, England
"I think Taylor has a really nice voice."
Amber, 8, West Lothian, Scotland
"It's fantastic. It definitely deserves more than three stars. Keep going, Taylor!"
Elena, 12, Belgium
"The song is so sentimental - like her."
Alba, 12, Burgos, Spain
"Before, I used to hate Taylor, but this song has made me a fan. She is so beautiful and the video is amazing. I love Mine."
Zari, 10, West Midlands, England
"Taylor Swift's Mine is her absolute best song yet. I have listened to it over and over again and it never gets annoying. It is quite similar to her other songs, but that's a good thing as they are all fantastic too. Taylor Swift always manages to impress. You need to see the music video!"
Lauren, 12, Scotland
"It is amazing! It is my favourite song of the year."
Kiaya, 8, Suffolk, England
"Everyone has different opinions but I think she's great!"
Sai, 10, London, England
"I really love Taylor Swift, especially Our Song, but I think her song Mine is good! I give it a 12 out of 10!!"
Lauren, 10, London, England
"The song is OK but it's the music video which is AMAZING!"
Zara, 13, London, England
I like Taylor Swift's single. It's a very good song; actually I hope it will go to number one in the UK."
Ellie, 11, Cumbria, England
"I really like this song, and that it makes my mum go mad."
Muna, 9, Cardiff, Wales
"I love it, it's so good."
Isabel, 9, London, England
"This song is really good. The chorus is easy to sing along to and a lot of teenagers can relate to it. Taylor Swift is one of my favourite singers and I can't wait to hear the songs in her new album!"
Chloe, 11, Belfast, N. Ireland
"We like Taylor Swift and her songs."
Streety and Eman, 7 and 8, UK
"I don't really like Taylor Swift but this song is awesome."
Cara, 10, Edinburgh, Scotland
"I think it is a really good song and I just love Taylor Swift music!"
Jess, 12, London, England
"I think Taylor Swift's new single, Mine, is going to be very successful and I hope it goes to the top of the charts."
Isaac, 12, London, England
"The music video is very confusing, although I like the song."
Michaela, 10, London, England
"Taylor Swift rocks. She is so talented and my favourite singer ever. I love her new song."
Caitlin, 11, Scotland
"I think she is amazing."
Katie, 14, Yorkshire, England
"This song is amazing. I love Taylor Swift, she is a really good singer and has some good music."
Georgia, 14, Portsmouth, England
"This song is really nice and it's nice to hear Taylor Swift's voice after a long time!"
Shanuka, 13, London, England
"This is so amazing, the music is lovely but can get a bit annoying."
Liyyah, 10, Coventry, England
"I love this song."
Lei, 11, Derby, England
"I think that the video is really weird and the lyrics don't mean anything. She goes too over the top on nature but she is so much better than Miley Cyrus."
Julia, 13, London, England
"I love Taylor and her music. I am really glad that she is making a new album. Mine is a really good start to her album this year. It is really good and the lyrics probably mean something to lots of teenagers."
Imaan, 10, London, England
"It was good but not that catchy. Miley Cyrus is much better."
Tom, 12, London, England
"I love it. It's amazing!"
Shona, 10, London, England
"I am a huge Taylor Swift fan. I think her style of music is really different and her songs are individual and one of a kind."
Charlotte, 13, Manchester, England
"The lyrics are sweet but it's not one of her best songs."
Becca, 14, Dorset, England