David Harbour has family day with estranged wife Lily Allen’s daughters after bombshell album release

[Step]daddy duty.

David Harbour spent the day with his estranged wife Lily Allen’s daughters — Ethel Mary, 13, and Marnie Rose, 12 — a day after the singer released her bombshell album.

Per a video shared on TikTok, the “Stranger Things” actor and his stepdaughters, whom Allen shares with ex-husband Sam Cooper, were spotted visiting Universal Epic Universe in Orlando, Fla., on Saturday.

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The “Black Widow” star, 50, was dressed casually for the outing, rocking a bucket hat, a red Mario T-shirt, cargo pants and sneakers, while the girls wore tank tops and jean shorts.

An eyewitness exclusively tells Page Six, “Everybody was all smiles, and they were having a great time.” 

We’re also told Harbour then visited Halloween Horror Nights at Universal and was escorted to the front of the attractions. However, it’s unclear if his stepkids were with him as well.

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The “Hellboy” star’s family outing came one day after Allen, 40, released her new album, “West End Girl,” in which she sings about the alleged cheating that led to their divorce.

On the track “Madeline,” the British songstress vented about Harbour breaking the rules in their “open” marriage.

“I know none of this is your fault, messaging you feels kind of assaultive / Saw your text, that’s how I found out, tell me the truth and his motives / I can’t trust anything that comes out of his mouth / No, I can’t trust anything that comes out of his mouth,” she sang.

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The woman that Allen was referring to on the explosive song was revealed to be Natalie Tippett, a costume designer who allegedly began an affair with Harbour while they worked together on a 2021 Netflix film.

In an interview with the Daily Mail, the 34-year-old said she heard Allen’s song but didn’t “feel comfortable” talking about her personal texts being used in the music.

In February, news broke that Allen and Harbour had separated after four years of marriage.

A source told People at the time, “Her marriage has been crumbling and they have split.”

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Shortly after, the “Hard Out Here” singer then revealed that she had gone to a treatment center for “emotional turmoil.”

By September, Allen, who married Harbour in a Las Vegas wedding in 2020, filed for divorce.

Harbour has not spoken publicly about the split or cheating allegations. In April, the “Suicide Squad” actor dodged questions about his divorce.