Kernkraft 400 is a techno track by German producer Zombie Nation, released in 1999 and built around a simple, chant-like synth riff. It became a fixture at football matches and sporting events, where crowds adopted the riff as a celebration chant, and later spread through highlight videos, stadium edits and internet memes. Its short, repetitive hook makes it easy to recognise even out of context, which is why creators still reach for it whenever they need instant, crowd-like excitement in a few seconds.