!!!!!
I wear a black belt on the beard that I grow on my dick!
Vader watch this
OMG
This is the greatest new thing on the internet.
This one is awesome too. A bit one sided, but who cares
Bieber vs Beethoven
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Tell me to get back to rewriting this site so it's not horrible on mobileActually the best one is Hawking vs Einstein. So many references in there.
Let's complete the set
I think we have them all now
My god these are well awesome!! Greatest youtubes since Why must I cry
___
Listen to Wu-Tang and watch Kung-Fu
O'Reilly totally should have shot John Lennon at the end of the battle.
I watched the Einstein vs Hawking one so much that I have a bunch of it memorized. I just wish I had all of it. Here's what I can regurgitate right now, with maybe a couple errors at most.
[Begin]
When I apply my battle theory, minds are relatively blown.
So take a seat, Steve... oop, I see you brought your own.
What's with your voice? I can't frikkin' tell!
You sound like Wall-E having sex with a Speak and Spell!
I'll school you anywhere, from MIT to Oxford.
All your fans'll be like like "Um, that was hawkward."
[Forgot line]
Yooooooooou've got no idea what you're messin' with here, boy!
I've got 12-inch rims on my chair -- that's how I roll, y'all!
[Forgot some of line] ... moustache on a troll doll!
I'll be stretchin' out the rhyme
Like gravity stretches time!
[Forgot some of line] p-brain can match this kind of mind!
I'm the best! I'm the Snoop Dogg of science!
I'll be droppin' mad apples on your head, from the shoulders of giants!
My shoulders would be the ones you'd stand on, if you could stand!
[Forgot some of line] with the palm of my hand!
[Forgot more] like your black hole theory was!!!!
There are 10 million million million million million million million particles, in the universe, that we can observe.
Your momma got all the ugly ones and turned them into one nerd!
[Stuff about Carl Sagan, and Hawking as a supercomputer versus Einstein as a Texas Instruments graphing calculator]
[End]
*watches video* Oops, a few more errors than I thought. Oh well. 
I am typing from memory as well.
[Your first forgotten line is]
I am dope as two rappers, you better be scared.
Because that means Albert E = MC squared (can't believe you forgot that one)
[second forgotten line]
You look like someone drew a moustache on a troll doll
[third line]
That's what you get when you put your p-brane against this kind of mind [not sure about this one]
[fourth line]
I will teach you a lesson with the back (or palm not sure) of my hand
You can't destroy matter or me for serious
I will rip a hole bigger than the hole of your black hole theory was
[fifth line]
you want to bring the heat with the mushroom clouds your making.
I will bake rhyms from scratch like Carl Sagan.
It is true my work is based on you, but I am like a supercomputer and you are a TI-82.
The same guy has another really funny series called picture songs in case you haven't seen them already. Very funny. There's about ten or so. Linking a couple here
___
Listen to Wu-Tang and watch Kung-Fu