Halp! Car won't do anything when I turn the key

[HAULN-SS]

So I was doing my front brakes today and was listening to the car's radio. Something happened, I don't know what, where when I looked in the car, the dash lights and shit were going crazy, and the music had quit. I turned the key off, and tried to turn it back on , and I don't get a single light, a click, nothing. Can't turn any lights of the car on. Did I somehow trip some theft thing? Anyone got any suggestions?