Taylor Swift and Joe Alwyn first met at 2016 Met Gala on May 2, 2016. Taylor Swift was dating Calvin Harris at the time they met, but later started dating Tom Hiddleston, whom she also met at the Met Gala. Meanwhile she was in a relationship with Tom, Joe and Taylor grew as friends. In September 2016, it was reported that Taylor and Tom were no longer together, presumably broken up in August.
There’s no accurate information whether Taylor and Joe started dating in September or October, but fans believe they started dating on September 28, 2016, due to Taylor’s lyric changing while covering “September” by Earth, Wind & Fire.
Joe and Taylor’s long-term relationship has been the main topic on Taylor’s latest albums, “reputation” (2017), “Lover” (2019) and “folklore” (2020) — most well-known songs about Joe includes “Delicate”, “Dress”, “Call It What You Want”, “Lover”, “Cornelia Street”, “Paper Rings”, “invisible string” and “peace”.
Taylor revealed on her documentary “folklore: the long pond studio sessions” that Joe has co-written “exile” and “betty” with her, under the alias William Bowery. Taylor’s ninth album “evermore” was released on December 11, 2020. Joe co-wrote three songs from the album as well, under the same alias, these being “champagne problems”, “coney island” and “evermore”.