When it came to music, he got his start behind the scenes, writing music for and with Snoop Dogg, Daz Dillinger, Terrace Martin, and DJ Quik beginning in 2007. A year later he formed Diamond Lane Music and signed with a major as the title to that year's mixtape, Deal or No Deal 2: Universal Cut the Check, suggested, but two singles later, he was off the label and back on his own. Work with Snoop, Wiz Khalifa, Iggy Azalea, Freddie Gibbs, and others bridged the years until 2012 when his appearance on E-40's hit single "Function" introduced him to the mainstream, and drove new fans to that year's mixtapes, Welcome to Mollywood, Pts. 1 & 2. The year 2013 kicked-off with a flurry of activity as three Problem mixtapes -- Million Dollar Afro, Ain't Nobody Hotter Than Me, and The Separation -- all landed before July, but the last one featured "Like Whaaat," a street single that grew into a viral hit. The track got an official release when Problem's debut EP, Understand Me, appeared on Diamond Lane before the end of 2013. ~ David Jeffries