What duo  was an American rapper and record producer apart of , who had a guest appearance in  the second album by American hip hop duo 1982 ?
Havoc (musician) Kejuan Muchita (born May 21, 1974), better known by his stage name Havoc, is an American rapper and record producer. He was one half of the hip-hop duo Mobb Deep.
One Track Mind One Track Mind is the second album by rapper Egyptian Lover. The album was released in 1986 for Egyptian Empire Records and was produced by Egyptian Lover himself. The album reached #37 on the "Billboard" R&B albums chart and produced two charting singles, "The Lover" and "Freak-a-Holic".