Dakota Johnson and Lily Allen Amy Sussman/Getty Images; Gareth Cattermole/Getty Images for BFC Share on Facebook Share on X Google Preferred Share to Flipboard Show additional share options Share on LinkedIn Share on Pinterest Share on Reddit Share on Tumblr Share on Whats App Send an Email Print the Article Post a Comment Logo text Dakota Johnson made a surprise appearance on the most recent episode of Saturday Night Live as the mistress in Lily Allen's song "Madeline." Allen performed the popular track from her new album, West End Girl, which centers on the narrator confronting her husband's mistress, named Madeline. The singer has previously said the album was inspired by her marriage to Stranger Things actor David Harbour, which reportedly ended earlier this year. "We had an arrangement / Be discreet and don't be blatant / There had to be payment / It had to be with strangers / But you're not a stranger, Madeline," Allen sang to the audience in Studio 8H before Johnson, as Madeline, explained her side of the story via texts she sent to the singer. Related Stories TV Josh O'Connor Swears He Doesn't Want to Star in a Live-Action 'Ratatouille' on 'Saturday Night Live' TV Sarah Sherman Tries to Be Normal... But Not Too Hard "Hey, he is telling you the truth. Our relationship has only ever been about sex. I can promise you that this is not an emotional connection. We don't speak outside the time we spend together. And whenever he talks about you, it's with the utmost respect," Johnson's Madeline said at first. Allen continued singing, with Johnson still behind a sheer curtain on stage, appearing to be lying on a bed and texting on a cellphone. "I hate that you're in so much pain right now," Johnson's Madeline added on SNL. "I really don't wanna be the cause of any upset. He told me that you were aware this was going on and that he had your full consent. If he's lying about that, then please let me know. Because I have my own feelings about dishonesty. Lies are not something that I wanna get caught up in." "You can reach out to me any time, by the way. If you need any more details or you just need to vent or anything. Love and light, Madeline," she concluded, eventually revealing herself from behind the curtain and kissing Allen on the cheek. Watch the full performance below. Earlier in the night, Allen also performed "Sleepwalking" from her most recent album. Elsewhere during Saturday's SNL episode, host Josh O'Connor cleared up rumors about him potentially starring in a live-action Ratatouille movie and more. THR Newsletters Sign up for THR news straight to your inbox every day Subscribe Sign Up Live Feed Josh O'Connor Swears He Doesn't Want to Star in a Live-Action 'Ratatouille' on 'Saturday Night Live' Noah Wyle No Show Dominated the SAG Awards in the Early '90s Like 'ER' Live Feed 'Heated Rivalry' Stars on Shane and Ilya's Relationship and Why We Love to Yearn THR's Original Podcasts At Least Things Are Going Well for Robby Hoffman The End of an Era 'The End of an Era' Review: Taylor Swift Takes a Well-Earned Victory Lap in Disney+'s Pleasantly Sweet Docuseries emmys TV Academy Reveals Nomination Date(s) for 2026 Emmys Live Feed Josh O'Connor Swears He Doesn't Want to Star in a Live-Action 'Ratatouille' on 'Saturday Night Live' Noah Wyle No Show Dominated the SAG Awards in the Early '90s Like 'ER' Live Feed 'Heated Rivalry' Stars on Shane and Ilya's Relationship and Why We Love to Yearn THR's Original Podcasts At Least Things Are Going Well for Robby Hoffman The End of an Era 'The End of an Era' Review: Taylor Swift Takes a Well-Earned Victory Lap in Disney+'s Pleasantly Sweet Docuseries emmys TV Academy Reveals Nomination Date(s) for 2026 Emmys