Movies

Who is Sia? Inside the singer’s weird world

Sia — the singer-songwriter behind “Chandelier” and “Elastic Heart” — rarely gives interviews. On stage, she hides behind wigs that cover her entire face. Privacy is her thing.

But lately, Sia Kate Isobelle Furler has found herself in an uncomfortable spotlight. And those who know the reclusive artist say she is no doubt pained by it.

Her former manager Tim Clark told The Post that it can turn one of two ways: “She’ll either be incredibly angry or else go back into herself and retreat.”

That spotlight will burn brightly Sunday as her film-directing debut, “Music,” is up for two Golden Globes — Best Picture in the musical or comedy category, and Best Actress in that genre for Kate Hudson.

The movie centers on an autistic girl — played by 18-year-old Maddie Ziegler, who has starred in many of Sia’s music videos and who’s not on the autism spectrum herself — and her drug-dealing sister (Hudson). The Post’s Johnny Oleksinski described Ziegler’s performance as “an uncomfortably heightened imitation that never rings true and verges on mockery,” adding that the actress “always has her mouth open with a wide grin and exaggerates facial expressions like she’s Marcel Marceau.”

It has drawn fire from the autism community. “[‘Music’] seemed like it made fun of people on the autism spectrum,” Camille Proctor, executive director of the Color of Autism Foundation, told The Post. “And I don’t guess that Sia feels bad about it.”

Sia attends the Miu Miu Women’s Tales Dinner during the 72nd Venice Film Festival at Ca’ Corner della Regina on Sept. 3, 2015. Vittorio Zunino Celotto

More than 55,000 people signed petitions calling for an official condemnation of “Music” by the film industry.

With criticism piling on, Sia, 45, earlier this month said she would remove scenes in which Ziegler’s character is physically restrained — a dangerous tactic discouraged by autism advocates. “I listened to the wrong people and that is my responsibility …” Sia tweeted. (She has since deleted her Twitter account.)

It was just two months ago that she admitted to having listened to another wrong person: Shia LaBeouf, who starred in Sia’s 2015 music video for “Elastic Heart.” After the actor’s ex-girlfriend, singer FKA Twigs, filed a suit accusing him of sexual assault, Sia tweeted that LaBeouf was a “pathological liar, who conned me into an adulterous relationship … ”

And those who know Sia say all this public turmoil is likely taking a high toll on her.

“She is an emotional person,” said Ryan Fitzgerald, a DJ in Sia’s native Australia who has interviewed her a dozen or so times. He added that Sia — who has said she suffers from PTSD and neuralgia after a misdiagnosis of Bipolar II disorder — “has had hard times. This will hurt her. She will be finding it really tough.”

Born and raised in Adelaide, Australia, Sia came from a splintered family. Musician dad Phil B. Colson was often absent, and her mother, Loene Furler, worked as an art lecturer.

While wait­ressing at age 17 in 1993, Sia fell in as the vocalist for a local acid-jazz band called Crisp.

“She was amazing,” former bandmate Jeremy Glover told The Post. “What resonated, beyond her incredible vocals, was that she was always herself. There was no act on stage, no glitz on her sleeve.”

Kate Hudson and Maddie Ziegler in “Music.” Alamy Stock Photo

As for the lifestyle, he remembered: “We were all drinking. She enjoyed white wine. It got her into the mood.” It became a crutch to get her through shows, as Sia never seemed comfortable performing live.

The band split up in 1997 and Sia traveled to Tokyo and then Thailand, where she met Dan Pontifex, the man who has been described as her first true love. They were set to reunite in London but, before Sia arrived, Pontifex was killed in a hit-and-run by a taxi driver in the city. She ended up still moving to London where, for a time, as she told Australian Rolling Stone, “I drank a lot and did a lot of drugs with all of his grieving friends.”

She also got back into music, joining trip-hop act Zero 7 and signing a management deal with Clark’s company. “She had an eccentric view on life,” her ex-manager  said. The first time Sia met him and his partner David Enthoven at their office, “she took off her shoes and asked ‘Where’s the dunny?’ In Australian lingo, that is an outside toilet. David and I ­decided that Sia is the girl for us.”

She had mild success at first, with a break coming when her song “Breathe Me” closed out the 2005 series finale of the HBO show “Six Feet Under” — playing while each character’s death was revealed.

Sia attends the 23rd Annual Elton John AIDS Foundation Academy Awards viewing party on Feb. 22, 2015. Getty Images for Chopard

She began performing at increasingly larger ­venues and seemed to be gaining a foothold in the States. But there was a problem. “She was brilliant at touring but didn’t like it,” Clark recalled. “We’d tell her a show was great and she’d tell us she hated it.”

Sia was also self-medicating on the road and beyond. “Drugs took me down really quickly. It was painkillers and opiates that were a real problem,” she told Australia’s KIIS-FM.

Clark saw his old friend become someone else. “We were trying to organize various radio promotions … All of a sudden she was insisting that one of her dogs would accompany her … We told her that it’s kind of not [OK],” he recalled. “Then she would say that if she flies to America it has to be first class. We couldn’t pay for it and the record company wouldn’t — her [album] sales did not support it … she became a real diva.”

Sia got sober. But she revealed to The New York Times that, in May 2010, she reached out to a drug dealer and ordered “two of everything” except meth and heroin. She kept her stash close and, months later, began planning her own suicide.

She wanted to check in to a hotel and take the pills. She got as far as writing a note to her dog walker and another to the hotel manager. But a friend’s call came at the right moment, and she changed her mind —and her life.

She began writing songs for others — Beyoncé, Rihanna — and it seemed like that might be her legacy: behind-the-scenes hit maker.

“When she works with ­Rihanna or Katie Perry, she meets with them, learns their pain points and becomes a kind of empathetic character,” music journalist Steve Knopper, who interviewed her for the Times, told The Post. “It makes for good songs that capture the artists’ internal conflicts. She winds up being a therapist character for these pop stars.”

Everything changed in 2014 when her own song “Chandelier” became an inescapable hit. She was everywhere, but no one really knew what she looked like — after all the self-loathing and stage fright, Sia had found a way to obscure herself: by casting Ziegler, then an 11-year-old star of the reality show “Dance Moms,” as her Mini-Me.

Former bandmate Jeremy Glover recalled being in a Berlin supermarket in 2016 and hearing Sia’s Kanye West collaboration, “Wolves,” playing over the PA system. “My first thought was, ‘Oh, wow, Sia is singing with Kanye,’ ” Glover told The Post. “My second thought was that Kanye needs Sia more than Sia needs Kanye.”

Sia was married to filmmaker Erik Anders Lang from 2014 to 2016, but the two didn’t have children. Then the singer saw the 2018 HBO documentary series “Foster” and something clicked. One of the teens in the doc, Dasani, was about to age out of the Los Angeles foster-care system — which can often lead to homelessness.

Sia is known for being tender-hearted. She has paid for groceries for strangers and spontaneously gave $100,000 to down-on-their-luck listeners of Fitzgerald’s radio show.

But it was a shock when she tweeted: “Hey Dasani from ‘FOSTER’ on HBO! I’d like to adopt you … ”

The doc’s director, Mark Jonathan Harris, and Dasani’s lawyer, Barbara Duey, both declined to comment on what happened. But Sia did end up adopting two 18-year-old men who had been in foster care and welcomed them into her Los Angeles home — where she’s been known to joke about how a song she wrote for Zayn Malik paid for the $1.2 million flooring.

Last year, she revealed that now, at age 45, she is a grandmother. “My youngest son just had two babies,” she said on DJ Zane Lowe’s Apple Music podcast. “I’m a f–king grandma . . . I’m just immediately horrified.” She added that the children call her “Nana,” but she’s trying to get them to call her “Lovey.”

For the past year, she’s been quarantining with her new family and has said that the kids in her family are “doing educational stuff that is good for them.” And they have undoubtedly been a comfort as she’s weathered unwelcome public attention.

Still, said Clark: “I don’t think she will give up on filmmaking in the same way she would not give up on songwriting and making records. I think she will keep going. I hope she will keep going.”