Wolfmother have cancelled their appearance at three UK festivals due to illness.
The band will no longer appear at Download (June 11-13), Hard Rock Calling (June 25-27) and T in the Park (July 9-11).
It is not clear which member of the Australian group has been taken ill.
Wolfmother will be replaced by Killswitch Engage at Download, while The Hives have been bumped up the bill at Hard Rock Calling.
For more information about all this summer's festivals, check out the Gigwise Festival Guide.