The sound spread as a TikTok trend built on modern slang, where rizz means charm or flirting skill and a simple white tee becomes the outfit proof. Clips using white tee rizz usually follow the same joke: minimal clothing, maximum confidence. That format made it easy to copy for outfit checks, transitions and duets, so the audio kept circulating beyond its first posts. It stays popular because the premise is instantly readable, needs no costume or setup, and lets anyone turn a basic wardrobe staple into a confident, shareable punchline.