Marcus Vialva, better known by his stage name Shabaam Sahdeeq, is an underground rapper from Brooklyn, New York. He has performed with such artists as Pharoahe Monch, DJ Babu, Mos Def, and Talib Kweli.


In 1999, Sahdeeq collaborated with DJ Spinna, Mr Complex and Apani B to form the hip-hop collective Polyrhythm Addicts. A supergroup renowned for its role in the rise of late '90s indie hip-hop. The single "Not Your Ordinary" paved the way for their first album, Rhyme Related, which was released on June 9, 1999, was referred to as "saturated with quality from top to bottom". After this success, the group disbanded to focus on their individual careers.

In Sahdeeq's solo career, he featured alongside rappers Busta Rhymes, Redman, Method Man, Kool G Rap, Common, Mos Def and Eminem. His distinct voice and delivery led to mainstream success on the "Simon Says" Remix along side label mate Pharoahe Monch. Sahdeeq is also recognized for his work on the Sound Bombing and Lyricist Lounge series. At this point he was in position to launch his solo album on Rawkus Records. Unfortunately do to the label's loss of distribution his solo project was never released and he would ask for a release from the label to solidify a new situation with the up and coming label Raptivism. In 2001 the artist re-emerged with the single "Bubbling" on Raptivism Records which received radio airplay. This track featured on his first solo LP Never Say Never. Four years later he reeased the "solid but not earth-shattering" Strategize: The Mixtape Album.

Seven years after their first album, Sahdeeq re-united with Spinna and Complex, with Tiye Phoenix replacing Apani B. Fly Emcee, to bring out Break Glass. The Polyrhythm Addicts' long awaited second album was released on April 24, 2007 under Babygrande Records.