Unless you’ve been living under a rock, you know Taylor Swift’s ‘The Tortured Poets Department’ album drops Friday.

And the Superstar just revealed that the first single will be…drumroll please…’ Fortnight’ with guest star Post Malone. Swift wrote:

‘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. 

‘I got to witness that magic come to life firsthand when we worked together on Fortnight.’