Listen to 'Dark Horse'
Katy Perry's new 'Prism' song 'Dark Horse' is markedly different than the album's first taste, the upbeat single 'ROAR.' Sonically and lyrical, 'Dark Horse' is, well, darker. If the song sounds sort of familiar, that's because its closest relative in the Perry catalog is the 'Teenage Dream' smash 'E.T.'