Epic Rap Battles of History (ERB) is a much loved YouTube web series created by Peter Shukoff (a.k.a. Nice Peter) and Lloyd Ahlquist (a.k.a. EpicLLOYD). The series pits notable historical and pop culture figures, real and fictional, against one another in a rap battle format. The characters portrayed are determined by suggestions from viewers placed in the comments sections of the channel's videos.
Here are the best from each of their first 6 seasons. WebsiteYouTube