Underworld and Magnetic Man are among the latest acts confirmed for Rock Werchter 2011, which will return to Werchter's Festival Park in Belgium from 30 June to 3 July.
Hurts, Triggerfinger, Fleet Foxes, Bright Eyes, Noisettes, Mona and Lissie have also been added to the bill.
Organisers have confirmed that there are no more one-day tickets available for Firday 1 July or 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.