"
Dark Horse" is a song recorded by American singer
Katy Perry featuring rapper
Juicy J. It was originally released on September 17, 2013, by
Capitol Records as the first promotional single from Perry's fourth
studio album,
Prism (2013). Three months later, it was released as the third official single on December 17. Both artists co-wrote the song with its producers,
Max Martin,
Cirkut, and
Dr. Luke, alongside
Sarah Hudson. It was conceived by Perry and Hudson during a writing session in Perry's hometown of
Santa Barbara, California, and Juicy J was later commissioned for a verse on the song.