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.
Chyna Doll (album) Chyna Doll is the second studio album by American rapper Foxy Brown. It was released on January 26, 1999 by Violator Records and Def Jam Recordings. After the commercial success of her debut album, "Ill Na Na" (1996), Brown began working on her sophomore record. This time, she insisted on being the executive producer to have a creative control over the album. She collaborated with a number of producers, such as Kanye West, D-Dot, Irv Gotti, Lil Rob, Swizz Beatz and Tyrone Fyffe, among others.