What Is Love was released by Trinidadian-German singer Haddaway in 1993 and became a worldwide Eurodance hit, later revived by its famous head-bobbing scene in the 1998 film A Night at the Roxbury. The chorus spread again through internet memes, dance videos, and short-form edits that paired its earnest question with awkward or exaggerated romance. Its simple synth line and unforgettable vocal hook make it easy to recognise in just a few seconds, which keeps it useful for comedy, nostalgia, and ironic love stories today.