Trying to keep up with Dave Grohl is exhausting. The guy makes most people half his age look lazy. Even with a broken leg, the dude just keeps going, like a tattooed Energizer Bunny with pure rock and roll coursing through his veins. To kick off the Foo Fighters’ North American tour, Grohl, his leg swaddled in an awesome purple cast, played from a custom-made, light-machine-equipped throne. You can watch a fan-recorded video of the concert below and feel bad about how you’re just sitting in a regular chair watching a guy with a broken leg rock out. Keep on keeping on, King Grohl.