Kaiser Chiefs and The National are among the top acts added to the Rock Werchter 2011 festival, which will take place at the Werchter's Festival Park, Belgium from 30 June until 3 July.
White Lies, Social Distortion and All Time Low have also been added to the line-up.
They join The Chemical Brothers, Kings Of Leon, Arctic Monkeys, Coldplay and Iron Maiden who all were announced previously.
Click here for the latest Rock Werchter line-up.
Organisers have confirmed that there are no more one-day tickets available for Saturday 2 July, but fans can register to be on a waiting list.
Combi-festival tickets, which give access to all four days, are available for 195 euros.
Click here to buy Rock Werchter tickets.
More acts are expected to be announced in the coming weeks.