The phrase comes from The Power, released in 1990 by German Eurodance group Snap, where singer Penny Ford delivers the unforgettable chorus over a sample driven club production. The song became a worldwide number one hit and its hook was later reused in films, adverts, sports arenas and countless remixes. Online, that same few seconds survived as a ready made shorthand for feeling unstoppable, so creators keep recycling it for entrances, victories and ironic flexes where instant recognition does all the work.