Lily Allen's receipt dress features lyrics dissing ex David Harbour

Lily Allen donned a sage green dress with lyrics of her new music printed out like a receipt during night one of her \

Lily Allen doesn't just keep receipts; she flaunts them on stage.

Proudly showcasing her vulnerability and brutal honesty on stage in true Allen fashion, the "Smile" singer donned a sage green dress that, in the form of a receipt, featured a long train with handwritten lyrics from one of her songs, "4Chan Stan," which allude to the demise of her marriage to "Stranger Things" actor David Harbour.

In that song, Allen sings, "You don't want her thinking that you cheat on your wife."

According to Page Six, the fabric of her dress also included receipts from tequila bars and Bergdorf Goodman. The latter, which is a designer store where Allen, in the track "4Chan Stan," discovers that her husband bought another woman a pricey handbag.

Other social media users also speculated the receipt dress was a nod to Harbour and his alleged infidelity.