I am auditioning for The Wizard of Oz at my local theatre and cant pick a song, help?

I am auditioning for the role of Dorothy. i am a fourteen year old female alto. We have been instructed to not use a song from the musical as an audition piece. I know for sure I do not want to do anything from Wicked because it is overdone for audition songs. It has also been suggested that we perform a song from a musical. thank you!!