“SexyBack” is a 2006 single by Justin Timberlake, produced with Timbaland, and it became one of the defining pop hits of the era. Short sections of the track later found a second life on TikTok and short-form video, where creators used its instantly recognizable groove for reveal edits, confidence memes, and stylish transitions. It stays popular because even a few seconds communicate attitude fast, making it easy to build a joke, flex, or transformation around the beat.