The Jonas Brothers have scored their first number one album in the U.S. with the third-best sales week of 2008.

The group's "A Little Bit Longer" has debuted at the top of the Billboard 200 countdown last week with 525,000 sales.

Only Coldplay and Lil Wayne have claimed bigger sales weeks this year.

Last week's charttopper, the Mamma Mia! soundtrack, drops to two and Kid Rock rounds out the new top three with Rock N Roll Jesus.