One of the most mysterious singers in pop music, Sia, stopped by her friend Ellen DeGeneres' talk show on Tuesday and opened up about the infamous wig she wears to hide her face during performances and appearances.

The singer went on the daytime talk show to promote her latest single "Alive" and again wore an over-stated half-blond, half-black wig in the style of a bob. The 39-year-old Australian revealed to DeGeneres that she did not show her face in order to remain anonymous in her real life.

"We're pals, so I have seen what your face looks like, I know what you look like," DeGeneres said to Sia. "But whenever you perform, you do not like to show your face, and I don't think people understand why."

"Well, it's so that I can go to Target and buy a hose if I want to. Or if I'm in need of a restroom and I can't find one, I could go by the side of the road," Sia replied. "And nobody would be following me with a camera trying to get 'the shot.'"

After the interview, the singer stuck around to perform a live version of her song "Alive."

Check out the clip and performance below!