Jackass began as an MTV television series in 2000, built around Johnny Knoxville and his cast performing outrageous stunts, pranks and daredevil challenges for the camera. The show later expanded into a series of hit films, and its brash opening music became shorthand for reckless comedy itself. Online, the short theme is now reused in short-form videos and edits whenever someone is about to attempt something foolish, keeping the franchise recognisable to new audiences long after its original run.