3. Jennifer Lopez
Jennifer Lopez began her career in the entertainment industry as a Fly Girl dancer on In Living Color, and eventually worked her way into acting in movies. Her big break was when she gained the starring role in Selena, a biopic about the Latin pop star. After filming, she was inspired to record a demo, and in 1999, she released her first studio album, On the 6. While continuing to act in a variety of films, J.Lo also released six other albums, selling 80 million records worldwide. Her successful music career ended up earning her a spot on the judging panel of American Idol tasked with finding the next big music superstar.