"Epic Rap Battles of History - Darth Vader vs. Adolf Hitler" - Great thing? Or GREATEST. THING. EVER?

"I am Adolf Hitler, Commander of the Third Reich. Little known fact:  Also dope on ze mic..."

Via Marketing Japan: Hilarious! Darth Vader vs. Adolf Hitler Rap

Plus the not quite as funny but still worth a chuckle - John Lennon vs Bill O'Reilly...

"Well, you Can't Buy Me Love, but I'll kick your ass for free..."