The Saturdays 'Single Written By Ex-Busted Member'

The Saturdays have teamed-up with former Busted member James Bourne for their new single.

Bourne wrote 'Forever Is Over', which is said to be the leading single from the girls' second studio album (expected by the end of 2009).

An insider says The Saturdays are keen to find their own sound and distance themselves from a certain girl band who share the same record label.

"'Forever Is Over' will be the song which finally distances The Saturdays from all the Girls Aloud clones remarks," the source told the Daily Star.

"It's totally unlike anything they've ever done before. It's a big 'F*** you' to a boyfriend after a break-up, and sounds like nothing Girls Aloud would ever release either."

"Everyone around the band is very excited as they've really started to hone their own sound. James wrote all of Busted's number ones, and a massive bunch of McFly hits too, so he knows what he's doing when it comes to pop and rock with a mainstream edge."