Pretty much every college student I know is familiar with Epic Rap Battles of History. For those of you who either A) live under a rock, B) are not college students or C) don't know how the internet works, we will enlighten you.
Epic Rap Battles of History (henceforth known as ERB) pits two historical/semihistorical/fictional characters from pop culture against each other in a fictitious 'rap battle' where the two (and sometimes more) parties verbally abuse each other to a meter. The crowd decides informally in the comments whose rhymes are stronger, and everyone with a decent sense of humor has a good laugh.
In the past, ERB has done battles such as 'Chuck Norris vs. Abe Lincoln', 'Bill Gates vs. Steve Jobs' and a personal favorite, 'Darth Vader vs. Adolf Hitler.' Today marks probably one of the most high profile, pop culturally-relevant Rap Battle they have done this season - an AMC showdown between 'The Walking Dead' protagonist Rick Grimes and 'Breaking Bad' antihero, Walter White. Check it out.
Warning: Contains strong language and tightie-whities