MGK addresses Megan Fox split, reveals secret rehab stay in new song off ‘Lost Americana’ album

MGK finally addressed his and Megan Fox’s breakup — and revealed his secret rehab stay — in an emotional song featured on his new album.

The singer — who formerly went by the stage name Machine Gun Kelly — dropped his seventh studio album, “Lost Americana,” on Friday. On one of the emotional tracks, titled “Treading Water,” he predicted he would “die alone.”

“This’ll be the last time you hear me say sorry / That’ll be the last tear you waste on me crying / I broke this home,” MGK, 35, sings.

He repeated the broken home line elsewhere in the song, adding, “I’ll change for our daughter, so she’s not alone.”

The songwriter and Fox welcomed their now-4-month-old baby girl, Saga, in March.

The on-again, off-again couple announced in November 2024 that they had a little one on the way — and called it quits weeks later after the actress, 39, reportedly found “messages from other women” in her partner’s phone.

MGK admitted to deception in “Treading Water,” singing, “I just ruined their holiday, and lies don’t die, they grow / And everything you try to hide eventually shows.”

“The beast killed the beauty; the last petal fell from the rose,” he continued. “And I loved you truly, that’s why it’s hard to let it go.”

MGK also described “pack[ing] up suitcases,” noting that he wrote the song “in Room Three, spending Christmas in rehabilitation.”

The actor added that he and Fox have a “complicated relationship that’s nobody’s business” — and hit back at “gossip” about their relationship.

Fans raved over the lyrics on social media, with one writing, “kells spending christmas in rehab all alone has me sobbing and him talking about his family dynamic with megan and saga and how he’s the reason they’re not together but that he still loves her nobody talk to me i need 8 business days to recover.”

MGK and Fox’s reps have yet to respond to Page Six’s requests for comment.

The musician said the same on the New York Times’ “Popcast” podcast on Friday, blasting the online narrative he “can’t control.”

He pointed out, “Ironically, neither me or Meghan have said anything. There could have been zero drama and you would never know.”

He went on to share an anecdote, which inspired the song “Sweet Coraline,” about a fan stopping him on the street to ask how he “fumbled Megan Fox.”

He admitted to “ruin[ing] everything” in his life “on purpose … before every album cycle” as a way of making great art.

As for his time in rehab, MGK said he was there from late November to early January — and immediately did a four-day “water fast” after leaving.

While he has undergone treatment “a couple times before,” the rocker wouldn’t divulge details about his most recent stay.

However, MGK said, “There’s a song called ‘Treading Water’ that’s probably the closest, maybe. It’s like the music speaks better than how I would be able to articulate it.”