Backstreet Boys team up with Chasez

The Backstreet Boys are teaming up with ex-N'Sync star J.C. Chasez on their new album.

The 'I Want It That Way' boyband have requested the services of Chasez to help them write songs for their new record Unbreakable.

Chasez has already helped out on the tune 'Treat Me Right' and is reportedly working with Nick Carter and A.J. McLean on another track.

On the subject of working with one of their old pop rivals, McLean is quoted as saying: "[He is] one of the most talented songwriters I have ever worked with."