Oslo’s Øya Festival has announced its first acts for 2011.

Taking place from August 9-11, the Norwegian blowout sports Warpaint [above], Fleet Foxes, Matthew Dear and Twin Shadow among its headline acts.

Further down the bill you’ll find rapper Wiz Khalifa, post-rock kings Explosions in the Sky, Pains of Being Pure at Heart, Comeback Kid, The Jayhawks and more. For the full line-up, as well as ticket details, check the festival’s homepage.