Former One Direction star Harry Styles has released "Lights Up," his first piece of new music in around two years. The first single from his upcoming second album, "Lights Up" was first teased with a series of posters pasted up around the world bearing the question 'DO YOU KNOW WHO YOU ARE?' The posters directed users to a website of the same name which offers compliments to anyone who enters their name into it. Styles has released a music video alongside "Lights Up," which premiered at the strike of midnight this morning. Styles has been discussing his long awaited follow-up to Harry Styles for a while; in a Rolling Stone cover story from earlier this year, the musician revealed that he was influenced by psychedelics, sex and feeling sad when writing it. Watch the video for "Lights Up," and listen to the song, below.