While She Sleeps are the latest name to be added to Reading and Leeds festival 2014 - joining the likes of Arctic Monkeys, Queens Of The Stone Age and more.
The one-off addition reveals that the Sheffield metal outfit will be performing on the recently renamed Pit Stage - on the Saturday at Reading and the Sunday at Leeds.
Tickets are selling very well for this year's event - which boasts a stellar line-up that includes Paramore, Blink-182, Queens Of The Stone Age, Arctic Monkeys, Jake Bugg, Vampire Weekend, Courteeners, Jimmy Eat World, Disclosure, Metronomy, Bombay Bicycle Club, The 1975, The Horrors and many more.