The song "Ready or Not" by R&B group After 7, is from their 1989 eponymous debut album. In 1990 it peaked at number one on the US Hot R&B/Hip-Hop Singles & Tracks (Billboard).
https://en.wikipedia.org/wiki/Ready_or_Not_(After_7_song)
https://en.wikipedia.org/wiki/After_7_(album)
https://en.wikipedia.org/wiki/After_7
https://en.wikipedia.org/wiki/Ready_or_Not_(After_7_song)
https://en.wikipedia.org/wiki/After_7_(album)
https://en.wikipedia.org/wiki/After_7