Taylor Swift reveals lead single from The Tortured Poets Department

Taylor Swift has revealed the lead single from The Tortured Poets Department.

The 34-year-old hitmaker has unveiled the first single from her highly-anticipated eleventh studio album, The Tortured Poets Department.

"The first single from The Tortured Poets Department is............. Fortnight featuring @postmalone," Taylor, 34, wrote in a new Instagram post on Thursday.

"I've been such a huge fan of Post because of the writer he is, his musical experimentation and those melodies he creates that just stick in your head forever," the Cruel Summer singer continued. "I got to witness that magic come to life firsthand when we worked together on Fortnight."

She concluded, "Honestly can't wait for you guys to hear this song at Midnight TONIGHT and see the video at 8pm ET TOMORROW."

The post included an image that appears to be the single's cover art. The black and white photo shows Taylor and Post casually sitting together, looking into the camera lens.

The new single marks the first collaboration between the artists.

In addition to Post, the album will also feature rock band Florence and the Machine.

The Tortured Poets Department, which will consist of 17 tracks, will be released on Friday.