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 garnered mostly positive reviews from music critics. A censored version of the album, titled Mobb Muzik, was released simultaneously.