It's easy to dismiss "South Park" as a crass cartoon that revels in curse words, gratuitous sex, and graphic violence. Probe a little deeper and what you find is one of the most biting and intelligent commentaries on our world and events.

"South Park" fans know that celebrity parodies are a huge part of the show's success and societal critique. Only three episodes into Season 19, and fans have seen shots fired at Caitlyn Jenner and Donald Trump. In fact, some of the series' most infamous episodes center on making fun of celebs.

To honor the show's long history of celebrity skewering, here are the 10 best "South Park" celebrity parodies of all-time.