'SNL': Inside Katy Perry's Trippy Performance With Dancing Mushrooms

Katy Perry delivered a psychedelic performance on ‘Saturday Night Live’ complete with dancing mushrooms. Belting out her single ‘When I’m Gone,’ Perry’s number garnered numerous social media reactions and invited comparisons to the Disney classic ‘Alice in Wonderland.’ The performance was also a teaser of her current Las Vegas residency, ‘Fun,’ at Resorts World.