'What Is Love' is a 1993 eurodance song by Haddaway. Online, short clips of its chorus became closely tied to comedy edits and the head-bobbing routine popularised by Night at the Roxbury, which helped keep the track in meme culture long after its original release. People still use this sound because the opening vocal is instantly familiar, the beat lands fast, and it can flip a normal scene into a knowingly over-the-top romantic or retro joke within a second.