The rock veterans will headline the opening night of the June festival in Hyde Park, London following the release of their ninth studio album 'Backspacer' in September.

On Friday organisers sent out a press release featuring a postcard from Seattle hinting at Pearl Jam playing.

Tickets go on sale at 9am on Friday (December 11).

Last year's sold-out Hard Rock Calling was headlined by Bruce Springsteen and The E Street Band, Neil Young and The Killers.

(by Scott Colothan)