What songs to sing at a talent show for a 15 year old girl?

hi i am a 15 year old girl soprano who is looking for GOOD songs to sing for a talent show i like all music but i need a big list to choose from cuz i have to choose 6 so if you guys could plz help me out here i will be so gratful but i will need a cd without them singing in it how do i do that cuz i cant buy six diffrent cds of instrumental how do i get it? :) thnx for your guys help and god bless u