Britney Wants Duet With Robbie Williams

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[img]http://img.perezhilton.com/wp-content/uploads/2010/05/britandrobb__oPt.jpg[/img]
Britney Spears took to her Twitter to reveal her secret collaboration request - and we didn't see this coming.

"If you could duet with any artist who would it be? [I] would love to do a duet with Robbie Williams," she Tweeted.