Faith No More who split in 1998, but re-unite earlier this year, will join headliners Def Leppard and Slipknot for the festival, which runs from June 12 to June 14.
Faith No More, will play on Friday June 12.
The Download line-up so far is:
Faith No More
Slipknot
Def Leppard
Motley Crue
Whitesnake
ZZ Top
Korn
Marilyn Manson
Dream Theater
Limp Bizkit
Pendulum
The Blackout
The Prodigy
Dragonforce
Devildriver
Trivium
Killswitch Engage
Anvil
Billy Talent
Buck Cherry