slipknot
The 2015 installment of Download Festival will have some huge names in the rock scene. So far the line-up is:

June 12: Slipknot, Judas Priest, Five Finger Death Punch and Black Stone Cherry

June 13: Muse, Faith No More, A Day To Remember, Marilyn Manson
June 14: Kiss, Motley Crue, Slash, Enter Shikari