This is pretty funny. For whatever reason, there are certain music shows around the world that request artists lip sync their songs when performing. Here is a clip of Muse performing on some European variety show and just to be assholes the lead singer and drummer switched places before 'performing' their single. It becomes pretty obvious as Matt, the lead singer turned drummer, hams it up.
But wait! This isn't the first, or funniest time we've seen this happen. As per usual with rock nowadays, Oasis did it first:
Sticks his tongue out.