The sound comes from Borat, the 2006 mockumentary comedy starring Sacha Baron Cohen as Borat Sagdiyev, a Kazakh journalist travelling through America. Short dance excerpts linked to the character circulated online as reaction music, helped by Borat's lasting popularity as a meme figure and his catchphrase-driven humour. The clip's very nice reputation made it a shorthand for naive triumph and misplaced confidence. It remains popular for edits because the reference is widely recognised, the runtime is only a few seconds, and the upbeat tone contrasts well with clumsy visuals.