Katy Perry & Juicy J Are Fiery Satanists As They Perform Dark Horse At The 2014 Grammys! Watch HERE!!
DAYUM GURL! That was AH-MAZE!
Dark Horse is our FAVE!!!!
Gurlfriend was on FIRE…literally!!
Though, we hope KP's parents weren't too mad at that Satan-themed performance!
Ch-ch-check out the performance (above)!!!