The Eagles Of Death Metal star has asked fans to donate to the victims of the Paris attack.
More acts have been added to the line-up for next year's Download Festival.
Queens of the Stone Age, 30 Seconds to Mars, The Gaslight Anthem and Motörhead will play the annual rock fest at Donnington in June 2013.
HIM, Alice in Chains and A Day To Remember are also new additions to the bill.
Iron Maiden, Rammstein and Slipknot have already been confirmed as next year's headliners.
It will be 25 years since Iron Maiden first headlined the event.
Download Festival takes place June 14 - 16 2013.