Nero and Cancer Bats are among the latest acts confirmed for Relentless Energy NASS 2011, which returns to the Bath and West Showground from 8-10 July.
Labrinth, We Are The Ocean and Dot Rotton have also been added to a line-up that already includes Tinie Tempah and Sub Focus as headliners.
Ms Dynamite, Breakage, Joker and more are set to play this summer.
Click here for the latest Relentless Energy NASS line-up.
More names are expected in the coming weeks.
The sports and music festival will feature five live music stages, international skateboarding and BMX south-west-four-sw4-2009 with some of the world’s best athletes and £50,000 in prize money.
Weekend tickets for Relentless Energy NASS 2011 are on sale now, adult camping tickets will be £72, those under 13 go for £42 and a family ticket costs £174. Day tickets are available from £11.