"Chandelier" is a song by Australian singer and songwriter Sia, from her sixth studio album, 1000 Forms of Fear (2014). Written by Sia and Jesse Shatkin and produced by Shatkin and Greg Kurstin, the song was released on 17 March 2014 as the lead single from the album. It is an electropop song, featuring electronica, R&B and reggae influences. Lyrically, the song has a melancholic theme, detailing the demoralisation and rationalisation of alcoholism through the thought process of a "party girl". More broadly, the song speaks to the fleeting feelings of release and abandon that come with intoxication, as well as the pain, guilt and emptiness that accompany addiction, alcoholism and hedonistic excess.

Sia Kate Isobelle Furler is an Australian singer and songwriter. Born and raised in Adelaide, she started her career as a singer in the acid jazz band Crisp in the mid-1990s. When Crisp disbanded in 1997, she released her debut studio album, OnlySee, in Australia. Sia moved to London and provided vocals for the British duo Zero 7. She released her second studio album, Healing Is Difficult, in 2001 and her third, Colour the Small One, in 2004.