Amy Diamond was a mere 12 years old when she released her debut single, the pop-reggae "What's in It for Me," which took Scandinavia by storm, spending 19 weeks in a Top Ten chart position in her native Sweden -- but her youth and cherubic, clear-eyed appearance belied her rich, powerful voice and sassy self-assurance. Born Amy Linnéa Deasismont in 1992 to an English father and Swedish mother, Diamond spent her childhood in both England and Sweden, studying dance, acting in theater and television, figure skating, and participating in singing and performance competitions. Winni...