Sia revealed her autism spectrum diagnosis during a recent podcast appearance. "I'm on the spectrum and I'm in recovery," the "Chandelier" singer said.

Maddie Ziegler wowed millions with her performance in Sia's 'Chandelier' music video and the dancer learned the choreography at top speed.

Sia, who faced criticism for casting Maddie Ziegler as a teenager on the autism spectrum in her movie Music, has deleted her Twitter following the movie's 2021 Golden Globes nomination.