If you think having a rich and successful father like Rev. Run or media mogul uncle like Russell Simmons might seem like all you need to become a hip-hop star -- just ask JoJo Simmons how his rap career is going. You can imagine how much it stung when his younger brother Diggy took his own shot at rapping at just 13 years old, and blew us all away. After five years, four mixtapes, a studio album and a spot on XXL's annual Freshmen list, Diggy proved money isn’t the only thing he’s inherited from his famous father.