Game Crashed Before Loading

Put the summary of the bug you're having here

What I expected to happen was...:
I expected the game to load so I could play.

What actually happened was...:
The game did not load and I could not play. It crashed. Damn.

Steps to Reproduce:
1.Click on Minecraft
2.Log In
3,Click Play
4.A bunch of words appear as if the game is loading.
5.The game crashes. WTF