• 50 Cent: budding home-shopping superstar

Just like rap music itself, rap-star entrepreneurship is frequently fad-happy. Clothing lines were once the ultimate rapper-as-multidisciplinary-hustler status symbol; so were vanity label imprints, acting careers, premium vodka endorsements, and, improbably, Wingstop franchises.

The hot shit in extramusical moneymaking in hip-hop at the moment is designer headphones, a synergistic cross-branding effort intended to separate rap fans from their money to the tune of around $300. Dr. Dre pioneered the form with his Beats by Dre line, and Ludacris, 50 Cent, and Chief Keef all have their own signature cans now.