5. Dave Chappelle, because the audience from his last show wants a refund.

Too much of that purple stuff. (Getty)

Ten years after he famously walked away from his show, Dave Chappelle's legend has only grown, and with good reason. Not only was Chappelle's Show amazing, he's still one of the greatest stand-up comedians ever to take the stage. To this day, he sells out arenas around the country with hordes of devoted fans. But if there's one person working to tarnish that legacy, it's Dave Chappelle.

In recent years, his live shows have been less and less well-received. His sets often last for three hours or more, most of it taken up by rambling stories instead of the tightly-written material of his earlier career. But last Thursday, at a show in Detroit, it reached a new level.