A nasty celebrity divorce just got a whole lot messier.

The lead singer of one of rock’s biggest bands is fighting hard to keep his children out of what he’s calling a dangerous situation.

And the details Matthew Bellamy laid out in court documents will leave you shaking your head.

The Custody Battle Rocking the Bellamy Household

Matthew Bellamy, the frontman of the British rock band Muse, has filed for sole physical and legal custody of his two children with model Elle Evans, according to court documents obtained by Fox News Digital.

Bellamy, 46, and Evans, 34, married in 2017 after several years together.

The couple share a son, Lovell, born in 2015, and a daughter, Mabel, born in 2018.

Bellamy cited what he described as Evans’ “habitual, frequent, and continuous” use of alcohol and controlled substances as a central reason he’s seeking sole custody, according to the filing.

He also alleged she has mental health struggles that affect her ability to parent.

Evans has denied those allegations, according to her own filings, and is pushing back hard on Bellamy’s characterization of her as an unfit mother.

She filed for divorce in Los Angeles earlier this year, and Bellamy countered with his own petition shortly after.

What Each Side Is Asking For

Bellamy’s filing requests that Evans be limited to supervised visitation only, a significant ask that signals just how serious he believes the situation to be.

He’s also asking the court to require Evans to submit to drug and alcohol testing and to undergo a psychological evaluation before any unsupervised time with the children is permitted.

Evans, for her part, is seeking joint legal and physical custody.

She has denied the substance abuse claims and pushed back on the mental health allegations, calling them false.

Both sides have retained legal counsel, and the case is being litigated in Los Angeles Superior Court.

Bellamy is also seeking spousal support from Evans, which adds another layer to what’s already shaping up to be a contentious legal fight.

And it’s worth noting that Bellamy has a child from a previous relationship with actress Kate Hudson, a son named Bingham, born in 2011.

That relationship ended in 2014.

What This Fight Really Comes Down To

Custody cases involving allegations of substance abuse are among the most difficult and emotionally charged proceedings in family law.

Courts in California apply a “best interests of the child” standard, which means a judge will weigh everything, including any credible evidence of substance use, mental health concerns, and each parent’s demonstrated ability to provide a stable home.

Bellamy’s request for supervised visitation is an aggressive legal posture, and judges don’t grant that lightly.

But Evans denying the allegations means this is headed toward a full evidentiary fight, not a quiet settlement.

The children are 9 and 6 years old, ages at which courts often try to minimize disruption and keep both parents involved when possible.

Whether the evidence Bellamy’s legal team presents holds up to scrutiny is the central question, and that won’t be answered quickly.

Celebrity divorces of this kind tend to drag on, get expensive, and generate exactly the kind of public record neither side initially wanted.

Muse remains one of the most successful rock acts of the past two decades, with Bellamy serving as the primary creative force behind the band.

But right now, the courtroom appears to be where his attention is most urgently focused.

And for two young kids caught in the middle of all this, whatever the court decides, the next few years are going to be complicated.

Sources: Fox News Digital