Which American hip hop duo from Port Arthur, Texas did Mean Green feature?
Mean Green (album):  It was released on September 29, 1998 and featured a majority of No Limit's artists, as well as other rappers including UGK and Mack 10. UGK: UGK (short for Underground Kingz) was an American hip hop duo from Port Arthur, Texas, formed in 1987, by Chad "Pimp C" Butler and Bernard "Bun B" Freeman.
UGK