The concept: a guy by the name of NicePeter challenges people to give him two famous people who should have a rap battle. Simple...kind of. These are freaking brilliant if you haven't seen them.

These are some of my favourites:

Darth Vader vs Hitler. Epic Rap Battles of History 2 - YouTube

Abe Lincoln VS Chuck Norris Epic Rap Battles of History #3 - YouTube

Dr Seuss VS Shakespeare. Epic Rap Battles of History #12 - YouTube

Gandalf vs Dumbledore. Epic Rap Battles of History #11 - YouTube

Justin Bieber vs Beethoven -Epic Rap Battles of History #6 - YouTube

Genghis Khan vs Easter Bunny. Epic Rap Battles of History #8 - YouTube

Sarah Palin VS Lady Gaga - Epic Rap Battles of History 4 - YouTube