|Queens Of The Stone Age|
Queens Of The Stone Age and Paramore will co-headline the main stages - with the latter making their only UK performance of 2014.
The announcement comes with a great big bundle of other names added to the bill - and here are some of the highlights.
Trotting out on the Main Stage over the August bank holiday weekend will be Vampire Weekend, Macklemore & Ryan Lewis, Imagine Dragons, Foster The People, Deaf Havana, Enter Shikari, Jimmy Eat World, The Hives, A Day To Remember and Sleeping With Sirens.
Making their R&L debut, Sirens frontman Kellin Quinn said: "We feel very honored to be a part of such a legendary festival - we're playing nothing but the bangers, so come out and yell every word with us! Can't wait to blow the roof off!"
Did no one tell him it's outdoors?
Anyway, over on the NME/Radio 1 Stage, Bombay Bicycle Club return alongside the likes of Chvrches, Clean Bandit, Temples, Drenge, Don Broco and Cage The Elephant.
And across the festival there will be performances from Klaxons, David Rodigan MBE, Lower Than Atlantis, Boys Noize, Danny Brown, Eagulls, The Fat White Family and many more.