Talent show? singing?

ok so i was in the talent show this yr which actually was 2nites ago. ok well i want to b more ready for the nxt talent show which will b in a yr. by then ill b 14 so in 8th grade. i sang since u been gone by kelly clarkson this yr (it was my first talent show) idk wht song i sud sing for nxt yr. i want at least an idea. cuz i had my song picked out for the talent show this yr like 2months b4 try-outs. but i want to b even more ready. so wht song? and ill proly change wht song cuz new songs come out like every month. but at least give me an idea. i sing pretty good. so idk im a girl and i will b 14 by then. (rite now im 13) anyway.. thanks