Extreme Corporal Punishment (aka ECP) was a fictional English hardcore band portrayed by American punk rock band Eight Bucks Experiment in the 1998 film SLC Punk. Live versions of three of their songs were recorded during filming of a concert scene: "One Of These Days", "Fear & Loathing", and "Trainwreck". They released the recordings on the One Of These Days EP through their label Blue Moon Recordings.