Huge promblem!?

Question:

Huge promblem!?

I'm auditioning for "How to Succeed in a Business:Without Really Trying" I'm so nervous! I don't know what to sing! Here's the big problem...I don't know what kind of voice I have! Now one's ever told me, but I get fairly good parts. I've sung, Diamonds are a Girl's Best Friend, Not a Day Goes By, It Don't Mean a Thing. Help?

Best Answer - Chosen by Asker: go to a teacher that'll listen to your true range, and the range that you can try to sing at. and theyll tell you what kind of voice you have