Sia calls leaving wig at home on Oscar night 'a mistake'

By Mary Ward
Updated April 6 2015 - 10:13am, first published March 31 2015 - 2:39pm
Sia arrives at the Marquee Dayclub's season preview at The Cosmopolitan of Las Vegas on March 21, 2015 in Las Vegas, Nevada. Photo: David Becker
Sia arrives at the Marquee Dayclub's season preview at The Cosmopolitan of Las Vegas on March 21, 2015 in Las Vegas, Nevada. Photo: David Becker
Sia arrives at the Marquee Dayclub's season preview at The Cosmopolitan of Las Vegas on March 21, 2015 in Las Vegas, Nevada. Photo: David Becker
Sia arrives at the Marquee Dayclub's season preview at The Cosmopolitan of Las Vegas on March 21, 2015 in Las Vegas, Nevada. Photo: David Becker
Sia arrives at the Marquee Dayclub's season preview at The Cosmopolitan of Las Vegas on March 21, 2015 in Las Vegas, Nevada. Photo: David Becker
Sia arrives at the Marquee Dayclub's season preview at The Cosmopolitan of Las Vegas on March 21, 2015 in Las Vegas, Nevada. Photo: David Becker
Sia arrives at the Marquee Dayclub's season preview at The Cosmopolitan of Las Vegas on March 21, 2015 in Las Vegas, Nevada. Photo: David Becker
Sia arrives at the Marquee Dayclub's season preview at The Cosmopolitan of Las Vegas on March 21, 2015 in Las Vegas, Nevada. Photo: David Becker

Sia has said she regretted stepping out without a wig at Elton John's Oscars after party, calling her public appearance "a mistake".