Alternative rock act Vampire Weekend has been added to the bill for the U.K.'s Isle of Wight Festival in 2010, along with British pop veterans Spandau Ballet and dance act Calvin Harris.

Dance-rock act Friendly Fires also joins the bill for the June 11-13 festival, which is staged by London-based Solo.

Acts already confirmed for the festival include Jay-Z, the Strokes, Blondie, Pink, Orbital, James and Doves.