Minecraft Crash after Log-In

Put the summary of the bug you're having here

What I expected to happen was...:
What i expected when I clicked play was to be able to play Minecraft

What actually happened was...:
I opened up minecraft and logged in, before I even got to the chose sinlge player or multiplayer screen I got a crash report

Steps to Reproduce:
1.Open Minecraft
2. Log In
3. Click Play