We talk about pop music. Pop music originated from rock music in 1955 and was pioneered by The Beatles. Rihanna is a highly successful Barbadian singer born in 1988. She was discovered as a singer at age 15 and signed with Jay-Z's record label. Rihanna has had much commercial success with albums like Good Girl Gone Bad and singles like "Umbrella", which spent two months at number one on worldwide charts.