Taylor Swift and Zayn Malik have dropped a surprise duet single from the "Fifty Shades Darker" soundtrack.
Swift and the former One Direction singer both shared clips of "I Don't Wanna Live Forever" on Twitter late Thursday. The full song was made available on iTunes on Friday.
"I Don't Wanna Live Forever" was written by Swift, Sam Dew and Fun's Jack Antonoff. Antonoff also produced the track.
Antonoff co-wrote three songs with Swift for her smash album "1989," including "Out of the Woods."