Newsround: So it's not over for the Backstreet Boys?
Nick: It's not over for the Backstreet Boys, not at all.
Newsround: Do you feel that rock is the real you?
Nick: This song has a rockier sound and it's definitely the real me.
I'm just trying to be young and have fun and do something that's in my heart.
I'm not trying to be something I'm not.
I've seen a lot of people in this industry be fake and if they just stuck to what they love - even if it's not accepted at first - that eventually will come across. That's what I'm doing.
Newsround: What was it like making the album?
Nick: Being in the studio and being able to create is cool.
It's something that I've learnt recently - I never claimed to be an incredible writer at all because I only wrote a couple of songs on the Backstreet albums.
Newsround: When do you think you'll be back with the Backstreet Boys?
Nick: I'm going to see how this goes and do some touring - if people like the music then I'll stick around a bit but I definitely want to get back with the Backstreet Boys and record some more music.
It's something different and something that I love.
But I'm seeing how it goes and I'm really having a lot of fun right now.
Newsround: The Backstreet Boys and N'Sync have always been in competition. Now you and Justin are both releasing solo singles at the same time - does it feel like you two are in competition?
Nick: No - it's not a competition at all.
We're really cool - we talk every now and then.
He's doing something totally different to what I'm doing.
He's doing R'n'B and I'm doing rock.
It's crazy that we are doing those two different types of music because we came from the same background.
He told me that he was glad that I did what I did because he remembers me being into rock.
I'm glad that he's doing what he's doing because he's an R'n'B guy.
In a way we're supporting each other.
Newsround: Are you mates with Prince William? We read in the papers that you were?
Nick: I met him once and we hung out for a couple of minutes! We had a drink.
He's a cool guy and if I had the chance I'd go out and party with him again.
You might see him at a concert!
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