The music comes from Curb Your Enthusiasm, the HBO comedy created by Larry David that premiered in 2000, where executive producer and director Robert B. Weide was credited at the end of episodes over Luciano Michelini's cheerful theme Frolic. Online creators began copying that ending, cutting to the credit after a fail or awkward moment, and the format spread widely on YouTube and social video in the 2010s. Like the Law and Order DUN DUN sting, it survives because viewers recognise it instantly as a signal that something has gone wrong, in a funny way.