No Surprises is a song by Radiohead, released on the band's 1997 album OK Computer and known for its gentle, music-box melody and restrained vocal. The doorbell version takes that familiar tune out of its original context and turns it into an everyday household sound, which is part of its appeal online. Creators share it as a short clip for edits and memes because the contrast between a cheerful door chime and a famously wistful song is instantly recognisable. That mix of familiarity, irony and quiet sadness keeps it in regular use.