It’s not often a celebrity airs their dirtiest laundry. But singer Lily Allen isn’t holding back on her marriage to “Stranger Things” star David Harbour.

Following the album release, a costume designer named Natalie Tippett has come forward claiming she had an affair with David Harbour - and there's lots of clues that seem to confirm that she is in fact Madeline. Here's everything you need to know.

In lyrics from the newly released track "West End Girl," Allen mentions this Brooklyn residence as a place she was forced to move into.