Nathan Cavaleri is only 13, but he plays blues guitar like the big guys. His dad taught him the right way to play after Nathan picked up a guitar and broke all the strings when he was 3. Last month Nathan was on tour with blues-guitar giant B.B. King, and the teenager just finished recording his second album. "I miss playing with friends," Cavaleri says about his demanding tour schedule. "But I get to be onstage."