Taylor Swift surprises fans with special guest appearances from her pals, Florence Welch and Jack Antonoff, at her final London Eras tour show. Florence and Taylor perform their duet, ‘Florida!!!,’ off her latest album, ‘The Tortured Poets Department.’ Meanwhile, Jack and Taylor sing her tracks ‘Death by a Thousand Cuts’ and ‘Getaway Car.’ This comes days after Taylor shocked crowds by bringing out another of her besties, Ed Sheeran, on stage.