Team Teamwork - Talib Kweli & Mos Def - Bright As The Stars (Earthbound) - YouTube
One of my all time favorite mashups. Anything mashed up with the Mother series automatically takes on a deep new meaning thanks to my affinity for the worlds of Earthbound and Mother 3.
These verses by Black Star put things on another level entirely, and absolutely knock the Super Nintendo, Sega Genesis mashup album out of the park on this final track.