“1-800 – hot n fun” is an unreleased song by K-Pop girl group LE SSERAFIM. The group debuted the song on April 13th during their performance at Coachella 2024.

The dance-pop track was met with excitement from fans and critics and was noted as a highlight of their Coachella set. It is speculated the group worked with A-list producers and will be marketed as a global single upon release.