Frontman Liam Howlett's revealed the band are currantly back in the studio working on the follow-up to their 2009 album Invaders Must Die and that their Download Festival headline set will contain brand new material.
Speaking to Kerrang he said fans can expect something big from their performance.
"We are definitely going to bring the party and make sure it rocks. It's the only festival appearance we are doing in 2012, so we're going to make sure it's really special. We're also going to be dropping some of the new stuff that we have been doing in the studio. It's going to be ****ing ferocious."
Tickets to Download 2012 - where Metallica and Black Sabbath will also headline - are on sale now.