In 2015 , Swift performed " I Saw Her Standing There " and " Shake It Off " with Paul McCartney at the '' Saturday Night Live 40th Anniversary Special '' after-party , and joined Kenny Chesney to sing " Big Star " on the opening night of his Big Revival Tour in Nashville . In March 2015 , Swift started dating Scottish DJ and record producer Calvin Harris . By June 2015 , the duo were ranked as the highest-paid celebrity couple over the past year by '' Forbes '' with combined earnings of over $ 146 million . Before Swift and Harris announced the end of their relationship in June 2016 , the two co-wrote his song " This Is What You Came For " ( featuring Rihanna ) , for which she was initially credited under the pseudonym Nils Sjöberg . The same month Swift started dating English actor Tom Hiddleston ; the relationship ended several months later . In August , Swift addressed her mother 's cancer diagnosis , and encouraged others to get a medical checkup . In September 2016 , Swift began dating British actor Joe Alwyn . In October , Little Big Town released " Better Man " for their seventh album , '' The Breaker '' , written solely by Swift . She had emailed them the song and offered it to them , having their harmonies in mind . The song earned Swift an award for Song of the Year at the 51st CMA Awards . Two months later , Swift and British singer Zayn Malik released a single together called " I Do n't Wan na Live Forever " , for the soundtrack of the film '' Fifty Shades Darker '' ( 2017 ) . The song reached number one in Sweden and peaked at number two in the United States . At the 2017 MTV Video Music Awards , the duo won the award for Best Collaboration for the song 's music video
2017 MTV Video Music Awards
2017 MTV Video Music Awards
Taylor Swift