Believe it or not, Tesla with Mark Twain.
“http://cdn8.openculture.com/wp-content/uploads/2013/10/Mark-Twain-Nikola-Tesla-Laboratory-1894.jpg";
Nikola Tesla vs Thomas Edison. Epic Rap Battles of History Season 2.
https://www.youtube.com/watch?v=gJ1Mz7kGVf0
Plus...
Einstein vs Stephen Hawking -Epic Rap Battles of History #7
https://www.youtube.com/watch?v=zn7-fVtT16k
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