Sia built a massive career hiding behind wigs and writing smashes for Rihanna, Beyoncé, and more, but her 2021 passion project, Music, flipped the script on her in brutal fashion.
The singer took the director’s chair for a story about a woman caring for her autistic roommate, starring Maddie Ziegler, Sia’s longtime dance collaborator from music videos.
Ziegler, just 18 and neurotypical, played the lead music with wide-eyed stares and repetitive motions that many in the autism community slammed as a caricature.
Sia defended picking Ziegler fast, arguing she knew autism through family ties and wanted an actress up to the role’s physical demands. That logic landed flat amid the growing storm.
Trailers dropped restraint scenes, showing Ziegler strapped down and isolated, moves autism advocates called abusive and straight out of debunked therapies. The film hit festivals in late 2020, then wide release in February 2021, right as social media amplified the critique.
Casting Fight Ignites the Firestorm
Autistic advocates led the charge, pointing out Sia bypassed actual neurodiverse talent despite vocal promises to represent. Actress Zion Brown offered to audition early on; Sia brushed her off online, saying Ziegler got the edge for training with an autism coach.
That stung deep. Critics piled on, with the National Board of Review labeling scenes as dangerous for glamorizing coercive tactics still pushed in some care settings.

The Change.org petition exploded, topping 55,000 signatures by mid-February 2021, urging Hollywood to strip Music’s two Golden Globe nods and blacklist it from awards chatter. Sensory overload complaints hit too: flashing lights and loud sounds made screenings tough for autistic viewers, with zero subtitles offered.
Sia’s X posts fueled more heat, like snapping at one critic to “shut up” over the portrayal. The box office tanked under $1 million domestically against a $16 million budget, a flop that buried any buzz.
Apology Falls Flat, Fallout Lingers
Sia tried damage control with a public sorry note to the autism community, admitting she missed the mark on casting and vowing better next time. Fans split: some forgave, seeing intent behind the mess; others cut ties, ditching playlists and streams. Music pulled from some platforms, and awards chatter dried up fast.
Her music output slowed post-backlash, with Elastic Hearts visuals scrubbed and tours sidelined amid personal struggles like addiction recovery. By 2022, YouTube deep dives framed it as her “downfall,” tying her low profile to the PR hit. Recent chatter on Reddit wonders if she’ll rebound fully, given spotty releases since then.
Defenders note Sia’s songwriting empire endures, penning hits quietly while her solo spotlight dims. No full career erasure happened, but the scar reshaped her public image from quirky hitmaker to controversy magnet.
Years on, the episode stands as a stark reminder of Hollywood’s authenticity push. Sia’s misstep hit during peak cancel culture waves, where intent bowed to impact every time. Autistic creators now land bigger roles, from Heartbreak High to Extraordinary, proving the gap they overlooked.
Stream music if curious, but brace for the baggage; it remains a lightning rod in rep debates. Sia’s voice might whisper back through ghostwritten tracks, but that director’s chair stays empty for now.
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