Rihanna was all UP in Coachella over the 3 day weekend, hitting up shows from The Weeknd, A$AP Rocky, Dre & Snoop and even jumping on stage for an impromptu performance on her “We Found Love” collaborator Calvin Harris’ set. Her bestie Katy Perry was also in the building and joined her for some interesting activities, per RiRi’s Twitter. LOL gotta love how crazy she is! Check the tweet below.