Gang Starr was an American hip hop duo, consisting of Houston-born record producer DJ Premier and Boston-based rapper Guru. Gang Starr was at its height from 1989 to 2003, and is considered a widely influential MC-and-producer duo. From Wikipedia
The actor's rendition of Gang Starr and Nice & Smooth's “DWYCK” at his star-studded 49th birthday party has received mixed reviews online.