The 'Dead And Gone' singer and best friend Trace Ayala launched the William Rast brand of premium jeans in 2005. Timberlake revealed that he wants to enlist the two Royals to promote the denim pants, according to The Daily Telegraph.
He said: "Do you know who we're trying to get into a pair of our jeans? Prince William - he'd look pretty cool in Rast. And Harry too."
Timberlake and Ayala are currently in London to market a new line of William Rast womenswear at Selfridges.
The star added: "We'd like to get Michelle Obama in the new collection, so we're going to send her some things. Barack Obama would be great in our jeans, too - we haven’t really seen his dressed-down look yet."
It was reported yesterday that the Alpha Dog actor may star in one of Guy Ritchie's upcoming film projects.