Rapper performs his track 'Lost In The World' at the ceremony
Wild Beasts, Warpaint, Janelle Monae and Metronomy are also added to the bill
Rap superstar will headline Norwegian bash in August
Beyonce and P Diddy watch rapper play Austin show
Rapper to perform at Vevo Power Station
Find out who's joining the likes of Fenech-Soler and Flying Lotus on the bill
Artist George Condo says West wanted 'something that will be banned'
First song from 'Watch The Throne' available to listen to now
West makes 'Watch The Throne' announcement on Twitter