here's the lijst of soundtracks of A&O 3, according to IMDb (look it up):
It's Gonna Be Me
Written door Max Martin, Andreas Carlsson and Rami Yacoub
Performed door 'N Sync
Produced door Rami Yacoub
Lonely No More
Written and performed door Rob Thomas
Produced door Matt Serletic
Let Your hart-, hart Decide
Written door Kristian Lundin and Sebastian Thott
Performed door Celine Dion
Produced door Kristian Lundin
Shooting Star
Written door Adam Young
Performed door Owl City
Produced door Adam Young & Stargate
Every Teardrop Is a Waterfall
Written door Chris Martin, Guy Barryman & John Buckland
Performed door Coldplay
Produced door Brian Eno
Live While We're Young
Written door Rami Yacoub
Performed door One Direction
Produced door Rami Yacoub & Carl Falk
toon Me The Meaning of Being Lonely
Written door Max Martin and Herbert Crichlow
Performed door The Backstreet Boys
Produced door Max Martin and Kristian Lundin
Tell Me Something I Don't Know
Performed door Selena Gomez
It's Gonna Be Me
Written door Max Martin, Andreas Carlsson and Rami Yacoub
Performed door 'N Sync
Produced door Rami Yacoub
Lonely No More
Written and performed door Rob Thomas
Produced door Matt Serletic
Let Your hart-, hart Decide
Written door Kristian Lundin and Sebastian Thott
Performed door Celine Dion
Produced door Kristian Lundin
Shooting Star
Written door Adam Young
Performed door Owl City
Produced door Adam Young & Stargate
Every Teardrop Is a Waterfall
Written door Chris Martin, Guy Barryman & John Buckland
Performed door Coldplay
Produced door Brian Eno
Live While We're Young
Written door Rami Yacoub
Performed door One Direction
Produced door Rami Yacoub & Carl Falk
toon Me The Meaning of Being Lonely
Written door Max Martin and Herbert Crichlow
Performed door The Backstreet Boys
Produced door Max Martin and Kristian Lundin
Tell Me Something I Don't Know
Performed door Selena Gomez