Taylor Swift reveals that ‘Fortnight,’ featuring Post Malone, marks the debut of Tortured Poets’ singles: ‘Excited for you all to listen!’

The Grammy-winning star announced that “Fortnight,” featuring Post Malone, will be the first single off her new album The Tortured Poets Department.

“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,” Swift wrote on Instagram. “I got to witness that magic come to life firsthand when we worked together on Fortnight.”

Talyor Swift, 34, also announced that she and Malone, 28, would be releasing a music video for the track at 8 p.m. ET on Friday, April 19, the same day of the album’s release.

“Honestly can’t wait for you guys to hear this song at Midnight TONIGHT and see the video at 8pm ET TOMORROW,” she wrote, alongside a black and white photo of her and Malone.

“Fortnight” is the first track on Tortured Poets, and only one of two songs to feature another artist; the song “Florida!!!” features Florence Welch of Florence and the Machine.

Swift announced the album, her 11th, in February during her acceptance speech for best pop vocal album at the Grammy Awards.

She recently teased that heartbreak would be a major theme of the album with five exclusive playlists that she shared with Apple Music, and has also dropped some hints as to lyrics.

On April 8, the same day an eclipse hit North America, she shared the line, “Crowd goes wild at her fingertips/Half moonshine, full eclipse.”

On April 16, Spotify hosted a pop-up exhibit in Los Angeles in which Swifties were able to walk around a library-themed room filled with subtle clues about the record, including new lyrics and imagery that hinted at possible content.

The songs are written with Swift’s frequent collaborators Jack Antonoff and Aaron Dessner, and Post Malone is listed as a co-writer on “Fortnight.”

The Tortured Poets Department will be released at midnight on April 19.