just reached an unprecedented relationship milestone.On June 23, brought the NFL player for her performance of “I Can Do It With a Broken Heart” during her third . In front of the sold-out Wembley Stadium audience—which included Sir Paul McCartney, Sophie Turner, and Phoebe Waller-Bridge— came out in full costume to join the vaudeville act during The Tortured Poets Department set.This content can also be viewed on the site it from.Obviously, fans were losing their minds at the stadium and online.This content can also be viewed on the site it from.As one Swiftie joked on , it looks like he was ready for his closeup after attending the previous two shows in London.This content can also be viewed on the site it from.This content can also be viewed on the site it from.None of Swift's partners have ever been implemented into one of her tour concerts, though Matty Healy during Phoebe Bridgers' opening performances in June.