The benefit concert hits St Louis for the first time
Paul McCartney makes surprise appearance at Hard Rock Calling<br />
Dominic West is among the faces in the backstage bar
Canadian legend covers The Beatles during Pyramid Stage slot
Black Lips, Simple Minds, The Rumble Strips also play the bash's final day
His career-spanning anthology set apparently features unreleased material
The Pretenders and Seasick Steve are also on the bill
Acts will join Bruce Springsteen as headliners
Legend joins line-up for 2009 event
Tracklisting and release date of new effort revealed