Rare audio cassette of "O.P.P." by the American rap group Naughty by Nature. The song was released on August 24, 1991 as the lead single from their self-titled debut album. The song was one of the first rap songs to become a pop hit when it reached No. 6 on the Billboard Hot 100 and No. 35 on the UK Singles Chart. Its declaration, "Down Wit' O.P.P", was a popular catchphrase in the U.S. in the early-1990s. The song was a hugely successful single with Spin magazine naming it one of the greatest singles of the 1990s. It also made some media outlets' lists of one of the best rap songs of all time: including The Source, VH1 and Rolling Stone. The song was also ranked No. 20 on VH1's 40 Greatest Hip Hop Songs of the '90s.