Lily Allen's past affair with Liam Gallagher has come back into the spotlight as Oasis prepares for a reunion tour. In her 2018 autobiography, 'My Thoughts Exactly', Allen recounts a mid-flight encounter during a 2009 trip to Japan for the Fuji Rock Festival, where she and Gallagher, then married to Nicole Appleton, ended up having sex in an airplane toilet after getting 'hammered'. Following their encounter, Gallagher invited her to his hotel, but he later pressured her to deny the affair to his wife when rumors surfaced. Allen admitted she was unaware of Gallagher's marriage at the time, noting that she had idolized him as a fan. The affair was discovered by Appleton six months later, contributing to the tension in Gallagher's marriage. The resurfacing of this story coincides with the heightened interest in Oasis due to their upcoming multi-million pound tour.