WATCH: Sia takes the Mick out of her own wig in Carpool Karaoke with James Corden
Sia proved she's happy to laugh at herself on Carpool Karaoke as she took the Mick out of her trademark wig.
As James Corden drove aimlessly around LA the Aussie singer was spotted on the footpath trying to find his car but unable to see thanks to her eye-covering wig.
James guided her into the car where they sang Chandelier among her other hits.
He also broached the subject of the wig and Sia gave her very serious answer.
"I don't wear this unless there's cameras around. I only wear this to maintain a modicum of privacy," she said.
"I was a singer for like 10 or 11 years to mediocre success and I was an alcoholic and a drug addict and I sobered up and decided I didn't want to be an artist anymore, because I was starting to get a little bit famous and it was destabilising in some ways.
"So I thought, what doesn't exist in pop music at the moment and it was mystery. I was like there's pictures on instagram of everyone at the dentist."
Sia then schools James in how to tackle her distinctive melodies and she reveals she believes in aliens.