Dave Chappelle -- Prince's Death Was A Loss For Everyone (VIDEO)

Dave Chappelle got emotional when remembering Prince ... just one night after calling the singer's death the "Black 9/11."

Dave hit up The Nice Guy in West Hollywood Saturday night when our photog asked about Prince. At first, Dave was shy to talk about it ... but then called the loss something that's hit home for everyone.

It was reported Dave called Prince's death the "Black 9/11" at a show in San Francisco Friday ... saying it's important everyone grieves together. You'll remember ... his "Chappelle's Show" famously featured a skit about the singer in one of its funniest projects.