“Carolina” is featured in the film’s trailer

Taylor Swift has penned “Carolina” for a film adaptation of Where the Crawdads Sing. The book was written by Delia Owens and has sold more than 10 million copies worldwide. The multi-GRAMMY winner shared her excitement on social media along with the trailer.

“Where The Crawdads Sing is a book I got absolutely lost in when I read it years ago. As soon as I heard there was a film in the works starring the incredible Daisy Edgar Jones and produced by the brilliant Reese Witherspoon , I knew I wanted to be a part of it from the musical side,” Swift writes on Instagram. “I wrote the song ‘Carolina’ alone and asked my friend Aaron Dessner to produce it. I wanted to create something haunting and ethereal to match this mesmerizing story. You’ll hear it fully soon, but for now check out the Crawdads trailer for a clip!”

From the best-selling novel comes a captivating mystery. Where the Crawdads Sing tells the story of Kya, an abandoned girl who raised herself to adulthood in the dangerous marshlands of North Carolina. For years, rumors of the “Marsh Girl” haunted Barkley Cove, isolating the sharp and resilient Kya from her community. Drawn to two young men from town, Kya opens herself to a new and startling world; but when one of them is found dead, she is immediately cast by the community as the main suspect. As the case unfolds, the verdict as to what actually happened becomes increasingly unclear, threatening to reveal the many secrets that lay within the marsh.

Where the Crawdads Sing stars Daisy Edgar-Jones (Normal People) as Kya Clark, Taylor John Smith (Sharp Objects) as Tate Walker, Harris Dickinson (The King’s Man) as Chase Andrews, Michael Hyatt (Snowfall) as Mabel, Sterling Macer, Jr. (Double Down) as Jumpin’, and David Strathairn (Nomadland) as Tom Milton. Olivia Newman (First Match) directs the screenplay by Lucy Alibar (Beasts of the Southern Wild) based upon the novel by Delia Owens. The 3000 Pictures film is being produced by Reese Witherspoon and Lauren Neustadter.

Sony Pictures will release the film in theaters on July 15th. No word on when the song will be available digitally.