Also performs as: Masta Ace (the person, US rapper)
Duval Clear (born December 4, 1966), known better by his stage name Masta Ace, is an American rapper and record producer from Brownsville, Brooklyn. He appeared on the classic 1988 Juice Crew posse cut "The Symphony". He is noted for his distinct voice, rapping proficiency and for influencing several MCs, including Eminem.
In 2000, he was diagnosed with multiple sclerosis, but he revealed it to the public in 2013.