Reps for Allen and Harbour did not immediately respond to PEOPLE's request for comment. The couple tied the knot in September 2020, but "her marriage has been crumbling, and they

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,