VIDEO : Taylor Swift And Zayn Malik Make Single For 'Fifty Shades Darker'

Zayn Malik and Taylor Swift have each released sneak peeks of a new duet song they performed together called ?I Don?t Wanna Live Forever.? It?s for the film, ?Fifty Shades Darker,? and the entire song will be available on Friday. The song was composed by Jack Antonoff, Sam Dew, and Swift herself. Antonoff produced the song as well, and he has previously worked with Swift before on ?Out of the Woods? and two other songs on her ?1989? album.