"We are so sad and disappointed to hear that Christina Grimmie was gunned down the same way that Dimebag Darrell was," band writes
Art-metal rockers also cover Drake's "Hotline Bling"
Foo Fighters frontman takes a tumble from the stage during Gothenburg show
Kurt Cobain 'was a master of jerking your chain,' explains Buzz Osborne.
'This is a musical map of America,' Dave Grohl says in the trailer
'Flaming Side of the Moon' is designed to sync up with the Pink Floyd classic as well as 'The Wizard of Oz'