Here's something you don't see everyday. Legendary and often secretive comedian Dave Chappelle made a rare public appearance last night at the Skrillex Takeover tour stop with DJ Craze and Louisahhh!!! at The Independent in San Francisco. This image, originally tweeted by Atlantic A+R VP Chris Morris and later retweeted by Skrillex and shared on facebook by Louisahhh!!!, shows Chappelle in full-on rave beast mode just before he crowd surfed "the length of the venue," according to Louisahhh's update. There's no explanation for how or why Chappelle was present or who he might've attended the show with, but with the Skrillex Takeover tour just taking off, we wonder if maybe he and Sonny have formed an unlikely duo. Jack U featuring Dave Chappelle on MC and jokes duties, anyone?