Mercury Music Prize winners Klaxons are set to headline the Friday (12 August) night of Relentless Boardmasters 2011, which returns to Newquay in Cornwall from 10-14 August.
As announced previously, Fatboy Slim is set to top the bill on the Saturday (13 August) night.
Bombay Bicycle Club, The King Blues and Breakage will also join Klaxons on the Friday.
Other acts added today (Wednesday) include Ben Howard and Maverick Sabre.
Weekend camping tickets are on sale now priced at £85 (plus booking fee). Other prices available.
Click here to buy Relentless Boardmasters tickets.
Boardmasters takes place across two sites in Newquay – Fistral Beach will host World class surfing, skate boarding and BMX while the cliff tops at Watergate Bay will host nine live music stages.
In a move to represent all aspects of surfing, Relentless Boardmasters will introduce longboarding including a Three Star Men’s ASP event and Six Star Ladies ASP event.