Originally appeared on E! Online
Sia is facing a new legal battle with Dan Bernad.
Amid their divorce proceedings, the “Cheap Thrills” singer’s estranged husband has filed for sole custody of their 19-month-old baby boy Somersault “Summi” Wonder Bernad, according to documents obtained by E! News Oct. 28.
Dan, 47, alleged in the filing that Sia, 49, struggles with drug addiction and is unfit to care for the toddler, who they welcomed in March 2024, less than a year before announcing their split following two years of marriage.
“Sia is a serious and immediate danger to our son,” Dan wrote in the docs, alleging that the singer had “deliberately and repeatedly concealed” being hospitalized for two weeks in September. “She tested positive for barbiturates and benzodiazepines, with no legitimate medical explanation.”
For reference, benzodiazepines are a class of sedative-hypnotic drugs typically found in anti-anxiety medications such as Xanax and insomnia treatments like Klonopin and Valium, according to Cleveland Clinic. Similarly, Barbiturates are sedative-hypnotic drugs often used to treat insomnia and prevent seizures.
And Dan isn’t only requesting sole custody due to his ex’s alleged drug use, further alleging in the filing that Sia violated their joint legal custody agreement by denying him visitation and “unlawfully” transferring written power of attorney of Summi over to his nannies.
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“Sia’s conduct is reckless, dangerous and demonstrates Sia’s utter disregard for Summi’s safety and well-being, and for court orders,” Dan said in the filing. “Sia is an unfit and unreliable parent struggling with substance abuse and addiction, rendering her incapable of providing safe or stable care for Summi.”
Additionally, the former radiation oncologist—who left his career behind when the former couple got married in 2022—said that his professional background makes him the “only safe and reliable parent for our son.”
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He added, “I am a doctor, young, healthy and have no criminal history or drug or alcohol addiction issues.”
In response to Dan’s request, Sia—also mom to two sons she adopted in 2019—denied allegations that she was abusing drugs, calling the accusations “entirely unfounded and misleading,” according to docs also obtained by E!.
“It is true that I struggled with drug and alcohol issues more than fifteen years ago,” the “Titanium” singer said in her filing. “I have been fully sober for over six months and working my program which includes weekly testing and a sober companion.”
Additionally, she alleged that her “primary care and custody” of Summi was in effect since before they separated.
“Dan does not work. Dan enjoys a nightclub, party lifestyle,” Sia alleged. “This is another reason for my concerns about Dan as a responsible and appropriate parent. This was pattern throughout our brief marriage.”
She added, “When he was in Los Angeles, Dan would spend limited periods of time with Summi and mostly in the presence of nannies.”
E! News reached out to reps for Sia and Dan for comment but has not heard back.
For more star couples who have called it quits over the past year, keep reading.
Sophia Culpo & Michael Stevens
Lori Loughlin & Mossimo Giannulli
The Full House alum and the fashion designer announced their split Oct. 2 after 27 years of marriage.
“They are living apart and taking a break from their marriage,” Lori’s rep Elizabeth Much told People. “There are no legal proceedings at this time.”
Nicole Kidman & Keith Urban
Benito Skinner and Terrence O’Connor
The internet star—better known as Benny Drama—shared that he and Terrence had split after nine years together.
“We both just love each other so much and have so much love and respect for each other,” Benito said on his Ride podcast in October, “and we treated each other with love and respect until the end.”
Tim Burton & Monica Bellucci
The Edward Scissorhands director and the Malena actress—who made their red carpet debut during the Diabolik Chi Sei? premiere at the 18th Rome Film Festival in 2023—confirmed their breakup on Sept. 19.
“It is with much respect and deep care for each other,” they shared in a joint statement to French media outlet AFP on Sept. 19, “that Monica Bellucci and Tim Burton have decided to part ways.”
Shailene Woodley & Lucas Bravo
Though the Big Little Lies actress and Emily in Paris actor hard-launched their romance in April 2025, the pair reportedly split by September.
Chase Stokes & Kelsea Ballerini
Paul Forman & Ashley Parks
The Emily in Paris costars split after nearly two years of dating.
They first sparked romance rumors in October 2023, but only confirmed their relationship in January 2024 when Ashley thanked Paul for being by her side during a health scare.
Akon & Tomeka Thiam
The “Smack That” singer’s wife filed for divorce in September 2025, three days before their 29th anniversary, according to courts docs obtained by Billboard.
Nina Dobrev & Shaun White
John Sansone & Claire Dirette
The Farmer Wants a Wife star and contestant have broken up nearly a year after finding love on season three of the Fox reality dating series.
“I would like to share that Claire and I ended our relationship shortly after Lollapalooza, over a week ago,” Sansone wrote in a since-deleted August Instagram post. “This was a mutual decision based on private challenges.”
“While I’ll always appreciate and respect the time we shared together, I feel it’s best to move forward separately,” the St. Louis native continued. “While our relationship was public, I wish for this chapter to remain as private as possible.”
Jessica Mulroney & Ben Mulroney
Meghan Markle’s former pal separated from her husband after 16 years, multiple outlets reported in July 2025.
The confirmation came after Jessica began posting photos without her wedding ring earlier that summer, and four years after her and Meghan’s friendship seemingly frayed.
Cat Deeley & Patrick Kielty
The So You Think You Can Dance host and Kielty announced their breakup after 12 years of marriage through a joint statement.
“We have taken the decision to end our marriage and are now separated,” they told BBC July 29. “There is no other party involved.”
The statement added that Deeley and Kielty would remain “united as loving parents” to their two kids Milo and James.
Matt Roloff & Caryn Chandler
The Little People, Big World star announced he and his former fiancée, who began dating shortly after his divorce from ex Amy Roloff had called off their engagement in July.
“Caryn and I have decided to part ways and end our engagement,” he wrote on Instagram at the time. “Life’s a continued journey and this is the right step for us at this time.”
Dylan Dreyer & Brian Fichera
The Today cohost revealed in July that she and her husband of 12 years had decided to separate.
“For many years I have shared my family with you all–the highs and the lows,” Dylan wrote in her Instagram announcement. “The ups and downs. And all of the blessings and beautiful memories in between.”
“For that reason, I want to share with you that a few months ago, Brian and I made the decision to separate,” she continued. “We began as friends, and we will remain the closest of friends. Most importantly, we will continue to co-parent our three wonderful boys together with nothing but love and respect for one another.”
Denise Richards & Aaron Phypers
The actress’ husband of six years filed for divorce on July 7, E! News confirmed.
In the legal paperwork, Aaron listed the reason for their split as “irreconcilable differences” and noted the date of the separation was July 4 (a.k.a. Independence Day).
Aaron is also asking the court to award him spousal support in the divorce.
Blac Chyna & Derrick Milano
After around two years together, the musical artists called off their nine-month engagement “after much prayer and reflection.”
“We love each other deeply and are good friends,” Chyna (real name Angela White) added in her July 3 social media message, “but we both believe that God’s guidance has shown us that this is the right path for both of us, as we each continue our journey.”
Gigi Gorgeous & Nats Getty
After nearly 6 years of marriage, the couple mutually decided to go their separate ways in July. “While they have decided to end their marriage,” a rep told E! News in a statement, “they remain friends and have the [utmost] love and respect for each other.”
Nats—who wed the influencer (real name Giselle Loren Lazzarato) in 2019—listed irreconcilable differences in the divorce filing.
Chelsea Blackwell & Tim Teeter
The Love is Blind reality star confirmed her breakup with her boyfriend on June 29, telling E! News, “It came down to a difference in lifestyle and priorities.”
Wishing her ex “nothing but the best,” Chelsea added, “I was focused on long-term stability and building a future, while he was more rooted in the moment. Over time, it became clear that we just weren’t aligned anymore.”
The news comes eight months after the season six contestant—who got engaged to ex Jimmy Presnell during the show, but never made it to the altar—hard launched Tim on social media with a simple caption, “Me & T.”
Marion Cotillard & Guillaume Canet
The Oscar winner and her partner of 18 years—who share two kids together—announced in June 2025 that they had “decided to separate by mutual agreement.”
In their joint statement, the pair said that as “parents of two children,” they decided to “share this decision here in order to avoid all speculation, rumors and risky interpretations.”
Katy Perry & Orlando Bloom
After nine years together, the “Roar” Singer and Pirates of the Caribbean star—who share daughter Daisy Dove—ended their engagement, multiple outlets confirmed on June 26.
The split rumors began circulating when the pair allegedly began spending more time apart after Katy embarked on her Lifetimes tour without Orlando, split speculation only fueled when he appeared alone in Italy for Jeff Bezos and Lauren Sánchez’s wedding.
Dermot Mulroney & Prima Apollinaare
The Chicago Fire star filed for divorce from his wife of 14 years on June 23, citing “irreconcilable differences” as the reason for the breakup. Though the paperwork said Mulroney was requesting spousal support, a source close to the former couple told E! News, “No one is asking for anything, and no one is denying anything. They are not arguing over money or the children.”
“They used mediators, not lawyers,” the insider added, “as they are friends and this is amicable.”
Tammy Hembrow & Matt Zukowski
Just seven months after her wedding, the Australian influencer announced she and the Love Island Australia alum called it quits.
“I am going to be getting a divorce,” Tammy shared in a June 21 video on TikTok. “Obviously, when you marry someone, you do it thinking that it’s gonna be forever. And I blame no one but myself, to be honest.”
Grant Ellis & Juliana Pasquarosa
The Season 29 Bachelor couple broke up three months after the finale, sharing the relationship update on Instagram on June 13.
“We both gave this out best and poured a lot of love into each other, but after a lot of deep conversations, we’ve come to the understanding that we’re simply not the right fit long term,” Grant shared on his Instagram story. “What we had was meaningful.”
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