80. Naughty by Nature, "O.P.P."
This classic cheating song was inspired by a pal from Naughty by Nature's East Orange, New Jersey, neighborhood who used the phrase O.P.M. for "other people's money." "We decided to flip that to 'O.P.P.,'" recalled Vin Rock. The group thought its subject matter was too raw for radio, but it became a pop-rap smash.