Foo Fighters were joined onstage by Paramore frontwoman Hayley Williams during their set at Bonnaroo. Check out footage of the moment below, as well as the full setlist.The set at this year’s Bonnaroo in Tennessee marked the latest of many upcoming festival appearances Foo Fighters are set to make this summer, and saw them take to the stage as the headliners for the US event yesterday (June 18).Kicking off with a rendition of their 2002 hit ‘All My Life’, taken from their fourth studio album ‘One By One’, the set ran for 19 songs, and featured fan favourites including ‘Learn To Fly’, ‘The Pretender’ and ‘Best Of You’.A key highlight from the gig arrived during the second half, however, when the American rock veterans were joined onstage by Paramore frontwoman Hayley Williams.