Taylor Swift had a sweet surprise for her fans on Thursday. Swift, 32, released her new song, "Carolina," which is based on the Delia Owens novel "Where the Crawdads Sing." The award wining novel has been turned into a film, which releases on July 15. "Carolina" will be featured in the movie and this release marks Swift’s first single since her 2020 album "Evermore." Taylor Swift based her new song "Carolina" on the Delia Owens novel, "Where the Crawdads Sing." (Kevin Mazur/Getty Images for The Recording Academy ) "About a year and half ago I wrote a song about an incredible story, the story of a girl who always lived on the outside, looking in," Swift shared on Instagram.