headlights always on?

Here is a weird question. I went outside to work on my car(1967 barracuda) after driving home from work, and i noticed the headlights were on. the headlight switch was not on nor were the keys in it. I figure the headlight switch might of gone out, I pulled the switch out disconnected it and reconnected the battery and the headlights still come on! Any advice on what to check, seems there is a short somewhere but I can't really seem to find it. any advice would be great, thanks! this problem just started yesterday.