Good songs for a 14 yr old who wants 2 b on American idol?

I have high hopes for american idol becuz i am in the number 1 chorus in the nation. I started sing before i was 1 yr old. My parents told me i would hum to music and sound like i was singing 2 the song. I love Kelly clarkson and KT Tunstall as well as Evanescence. I am a soprano and can do low songs as well ( just not that good) I though 'At Last' by Etta James was good but i have pitch problems. Any good songs?