Marlon G. Fletcher (July 29, 1971 – May 22, 2003), better known under his stage name Big DS, was an American rapper and record producer from Queens, New York.

As a part of Onyx Big DS released one album "Bacdafucup" and 8 singles on JMJ Records and featured on 1993's Judgment Night (soundtrack).

In 1988, after graduating from school at the age of 17, Fredro Starr created the rap group Onyx along with his schoolmates Big DS and Suavé (also known as Sonny Seeza).

[citation needed] In 1990, at York Studio in Brooklyn, they recorded their first single, "Ah, And We Do It Like This", which was released to low sales on April 25, 1990, on Profile.

[6] They were replaced on the demo by Fredro Starr's cousin, Sticky Fingaz, who at that time was pursuing a solo career under the name Trop.