Those who tuned in for Sum-in-1‘s first feature, Born Hip-Hop, already know that the L.A. hopeful is one-hundred percent devoted to his art form, and hungry. If any doubt remained, though, new single Underground Anthem (a Booth-exclusive world premiere!) should dispel them. Over Kev Da Khemist‘s Lenny Pettinelli-sampled production (complete with scratches by DJ Leviathan), the headliner and guest emcee Destruct drop verses demonstrating their burning passion for hip-hop. Digging it? then keep it locked for release details on Sum-in-1’s And Then Sum digital LP, coming soon to iTunes.