Austin singer and rapper Mama Duke is going straight to theAmerica's Got Talent finale after receiving the "Golden Buzzer" from judge and fellow musician Mel B. Mama Duke performed in the competition show's live quarterfinal on August 26. Most acts were subject to community votes to determine if they would go on to the semifinal round or leave the competition, but not this one. Mel B chose to use her only Golden Buzzer — and the only one available for the episode — to give Mama Duke immun...
