A twist of fate put a guitar in Nene Royal’s hands. Aged seven, she wanted to join the computer science club at her school in Phuket, Thailand, but it was already full. “The only place left was in the music club, and the teacher handed me a guitar,” she told This Week in Asia. “The moment I started playing, something clicked.” Now just 16, the self-taught rocker has a shot at global stardom on the world’s most watched talent show, America’s Got Talent. “I learned by watching YouTube videos,...