Doctor Who has been around seemingly forever, but the British show has found a recent surge in popularity among a new generation of fans. With fandom running rampant on the web, it was inevitable that the Doctor would be pitted against another famous Doc in a rap battle. Obviously.
It's happened, and it's viral, and it's epic. It seems to me that the Doctor won the battle, but I have to give credit to Doc Brown for working the line "Dalek my balls" into his rhyme. Enjoy.