Yesterday Katy Perry released Prism teaser track “Dark Horse”. “Dark Horse” is a dark, dub-step inspired; pop balled featuring rapper Juicy J. Katy Perry sings, “Are you ready for a perfect storm? Once your mine there’s no going back!” before the song breaks out into its haunting dub-step count. “She’s a beast, I call he karma! She eats the heart out like Jeffery Dahmar. Fans chose the track earlier this year over another Prism track called “Walking On Air”. Dark Horse showcases the diverse tracks that will be featured on the upcoming album. Katy’s Prism is due on October 18th! Check out “Dark Horse” ft. Juicy J below!