Just a WAAPA audition question

Hi all, Was just wondering what everyone's opinions are on what is approipriate for me (female) to wear for my WAAPA (Music Theatre) audition? Also, should I avoid overdone hair and makeup at all costs? Even if your opinion is uninformed...your two cents are welcome :) Thanks! P.S. Sorry about the trivial questions, but I just couldn't get my head around this one :S