Lily Allen performing Madeline live on SNL over the weekend NBCLily Allen had a surprise in store for fans as she performed songs from her latest album West End Girl live for the first time. AdvertisementOver the weekend, Lily was the musical guest on Saturday Night Live (SNL), where she opened the show with a rendition of Sleepwalking, and closed it with stand-out track Madeline. And it was this second performance that really got people talking thanks to the inclusion of a surprise guest. “Love and light, Madeline...”AdvertisementDakota Johnson and Lily Allen on Saturday Night Live NBCWest End Girl was created in the space of 10 days towards the end of last year, with Lily describing the album as a work of “autofiction”. She previously claimed that the songs featured on West End Girl were “inspired by what went on” towards the end of her marriage, albeit with artistic licence applied.