Kings of Leon to play Rock Werchter 2011

American rock giants Kings of Leon and electronic duo The Chemical Brothers are the first artists to be added to the line-up of Rock Werchter 2011, running from 30 June - 3 July in Werchter, Belgium.

Tickets for the festival, which last year hosted headline sets from Pearl Jam, Rammstein and Green Day, go on sale on 4 December.

Rock Werchter is one of the largest rock music festivals in Europe, hosting 80,000 guests for four days of entertainment from some of the biggest acts in the world.