Siouxsie Sioux (/ˈsuːziː suː/, born Susan Janet Ballion, 27 May 1957) is an English singer-songwriter. She is best known as the lead singer of rock band Siouxsie and the Banshees (1976–1996) and its side project The Creatures (1981–2005). Siouxsie and the Banshees released 11 studio albums and several UK Top 20 singles including "Hong Kong Garden", "Happy House", "Peek-a-Boo" plus a Billboard Top 25 hit "Kiss Them for Me". With the Creatures, Siouxsie recorded four studio albums and the hit single "Right Now". She has also sung with artists such as Morrissey and John Cale. In the mid-2000s, she began a solo career and released Mantaray in 2007.

Allmusic named Siouxsie as "one of the most influential British singers of the rock era". Her songs have been covered by Jeff Buckley, Tricky, Massive Attack, and LCD Soundsystem. Her records have also been praised by artists such as PJ Harvey and TV on the Radio. In 2011, she was awarded for Outstanding Contribution to Music at the Q Awards and in 2012, at the Ivor Novello Awards, she received the Inspiration Award.