The Foo Fighters fans flocked at Slane castle, on 30th May 2015 where the 20th Live concert was held by the Seattle band. Former drummer Dave Grohl pictured here defied the Irish weather conditions and continued to play driving the fans to a rocking frenzie in the down pour. The Foo fighters , was founded in 1994  by Dave after having left Nirvana. The ex drummer promised a night of continuous music leaving his fans speachless.“This  ...