Boom comes from American rock band P.O.D. and their early 2000s nu metal era, when the track became one of their best known singles. The repeated chorus was easy to lift as a standalone cue, so it spread through sports highlights, wrestling style entrances, gaming edits and later short form video. Its appeal has lasted because the lyric works as a literal announcement, letting creators borrow the confidence of a rock anthem for reveals, transformations and over the top introductions without needing the full song.