Lily Allen and David Harbour are separating four years after they married in September 2024, multiple sources confirm to PEOPLE. "Her marriage has been crumbling," an insider tells PEOPLE exclusively,

Lily Allen and David Harbour are calling it quits. After reports over the last several months of the pair's split, multiple sources have now confirmed to People Magazine that the pair have separated after four years of marriage.

For several years, the pair appeared to be the picture of wedded bliss, settling down with Allen's two children, Ethel and Marnie, in a Brooklyn townhouse that the duo completely transformed into a "weird and wonderful" paradise filled with eccentric decor.

The couple’s extensively renovated Brooklyn townhouse includes a windowless pink primary suite that Allen called a ‘bed womb.’

Unfortunately for fans of the couple, it seems to be all over for David Harbour and Lily Allen, who is "devastated" by the split.

Lily Allen and David Harbour have reportedly broken up. In recent months, rumours have swirled online suggesting the “Smile” singer and “Stranger Things” actor were having marital problems. And in a report published by “People” on Monday, sources claimed Allen and Harbour have separated after four years of marriage.

Lily Allen and David Harbour have separated after four years of marriage, multiple sources told PEOPLE in a report published Monday, Feb. 3. Confirmation of the split comes after months of rumors about the Stranger Things actor,

Is it officially over for Lily Allen and David Harbour? Following weeks of rumors of a split between the couple, People reports that the "Smile" singer and the "Stranger Things" star have called it quits,

Stranger Things star David Harbour attended the Critics Choice Awards 2025 in Santa Monica Feb. 7, marking his first appearance since his reported breakup with wife Lily Allen.