The Year in Music -- Pharrell Makes the Whole Worl...

Before 2013, you knew who Pharrell Williams was if you paid attention to the producer credits on songs for artists like Miley Cyrus , Shakira , Jennifer Lopez , Britney Spears , Madonna, and Gwen Stefani , or if you loved the songs "Frontin'" and "Drop It Like It's Hot." In 2013, you knew Pharrell from his contributions to the year's two biggest hits: "Blurred Lines" and "Get Lucky."