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