Katy Perry and Juicy J Perform 'Dark Horse' at Grammys

Katy Perry cast a spell on the Grammy stage at Sunday’s show. The pop diva transformed Staples Center into an enchanted forest while performing her latest single “Dark Horse,” which is currently No. 2 on the charts. Juicy J emerged from the smoke to deliver his verse before the stage erupted in flames.

Watch the witchcraft come to life.