Sure, Fall Out Boy are about as far away from metal as possible, even though Joe Trohman and Andy Hurley are in The Damned Things. However, when they played their new single, “My Songs Know What You Did In the Dark” on Conan yesterday, they paid tribute to one of the best movies ever, This is Spinal Tap. In fact, Derek Smalls (who some might recognize as Harry Shearer), even shows up. Even if you hate the band, just mute the volume and watch. And if for some reason, you haven’t seen Spinal Tap, you’re doing yourself a disservice, but you can check out “Rock and Roll Creation” from the film after the jump.