Murda Muzik is the fourth studio album by American hip hop duo Mobb Deep, which was released on August 17, 1999, through Columbia Records and Loud Records. It features one of the group's best-known tracks, "Quiet Storm." It is also the duo's most commercially successful album to date, for shipping over 1 million copies in the United States and was certified Platinum by the RIAA on October 26, 1999, debuting at No. 3 on the Billboard 200 charts. Murda Muzik also garnered positive reviews from The Source and AllMusic, among others. A censored version of the album, titled Mobb Muzik, was released simultaneously.