If you ever wanted to know what a rap battle between George Carlin and Richard Pryor would be like, here's your chance. The popular YouTube series "Epic Rap Battles of History" returned yesterday (July 14) with a duel that parodied ?the late comedy legends.

The four-minute video is jam-packed with references recognizable by true fans of Carlin and Pryor -- including all of Carlin's infamous "Seven Words You Can Never Say on Television." ERB versions of Joan Rivers and Robin Williams also make guest appearences.

Check out the new video below.