SexyBack is a 2006 single by Justin Timberlake, produced with Timbaland, and it became one of the defining pop hits of the mid-2000s. Short sections of the track later found a second life in TikTok and short-form edits, where its clipped vocal style and hard beat made it perfect for bold transitions and attitude-heavy reveals. It still gets used because the opening feel is instantly recognizable and communicates confidence within a few seconds, even to viewers who only know it as a meme sound.