Sia Kate Isobelle Furler is an Australian singer, songwriter, voice actress and director. She started her career as a singer in the acid jazz band Crisp in the mid-1990s in Adelaide. In 1997, when Crisp disbanded, she released her debut studio album, titled OnlySee, in Australia. She moved to London, England, and provided vocals for the British duo Zero 7. Sia released her second studio album, Healing Is Difficult, in 2000, and her third studio album, Colour the Small One, in 2004.
Sia relocated to New York City in 2005 and toured in the United States. Her fourth and fifth studio albums, Some People Have Real Problems and We Are Born, were released in 2008 and 2010, respectively. Each was certified gold by the Australian Recording Industry Association and attracted wider notice than her earlier albums. Uncomfortable with her growing fame, Sia took a hiatus from performing, during which she focused on songwriting for other artists, producing successful collaborations "Titanium", "Diamonds" and "Wild Ones".
In 2014, Sia broke through as a solo recording artist when her sixth studio album, 1000 Forms of Fear, debuted at No 1 in the U.S.