Kaido is one of the Four Emperors in One Piece, the fearsome pirate captain known as the King of the Beasts, and his booming laugh has become one of his most recognisable traits. Clips of the laugh spread through anime edits, reaction videos and gaming montages, where it is used to signal overwhelming power or a villain who cannot be stopped. It remains popular because the sound is instantly recognisable to One Piece fans and works even for viewers who have never watched the series, instantly setting a dark, dominant tone.