Foo Fighters have a long history of sharing the stage with fans and even in some cases Dave Grohl’s own daughters, but at September 21’s Dreamforce, the band were joined by some giant – but weirdly sweet and adorable – dancing mascots. Reportedly named Astro, Einstein and Ruth, the cute figures danced along and rocked out to One By One classic All My Life, with Dave joking during the performance, “Just when I thought life couldn’t get any fucking weirder. You need to chill fuck out, Einstein. You’re going too hard, brother.” Read this: 16 rock and metal bands who’ve never let their fans down Foo Fighters themselves also later made light of the gig – and their already-cramped surroundings anyway, given there’s six members of the band – tweeting afterwards: “Just w...