Sia Proves She's Every Bit As Weird (and Awesome) As You Imagine on 'Carpool Karaoke'

Sia joined James Corden for "Carpool Karaoke" on Tuesday, and the cute (and impressively harmonized) ride through Los Angeles was a lot of fun.

Aside from the 40-year-old singer and The Late Late Show host killing it when it came to the actual karaoke part of the segment, Sia also taught us a few important things about herself that many fans might never have known.

1. Why She Always Wears a Face-Covering Wig

"I don't wear this unless there's cameras around," the "Chandelier" artist shared when Corden mentioned how he had once met her face-to face, sans headgear. "I only wear this to try to maintain a modicum of privacy."

Sia also opened up about the inspirations behind the wigs, explaining, "I was a singer already for 10 or 11 years to mediocre success, and I was an alcoholic and a drug addict. 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 destabilizing in some ways. So, I thought, 'What doesn't exist in pop music at the moment?' And it was mystery."

So, equal parts privacy and mystery? Yeah, that sounds about right.