"Lights Up" is a song by English singer-songwriter Harry Styles from his second studio album, Fine Line (2019). It was written by Styles alongside its producers Tyler Johnson and Kid Harpoon. Erskine Records and Columbia Records released the song for digital download and streaming on 11 October 2019 as the album's lead single. Musically, "Lights Up" is a pop and R&B song, featuring multilayered guitars, piano, programmed beats, and a gospel choir. Conceived by Styles after a period of self-reflection, the lyrics are about self-discovery and him embracing his own identity.