List of Hot R&B Singles number ones of 1990

Billboard published a weekly chart in 1990 ranking the top-performing singles in the United States in African American–oriented genres; the chart's name has changed over the decades to reflect the evolution of black music and has been published as Hot R&B/Hip-Hop Songs since 2005. In 1990, the chart was published under the title Hot Black Singles through the issue of Billboard dated October 20 and Hot R&B Singles thereafter, and 36 different singles reached number one.

Source: Wikipedia — List of Hot R&B Singles number ones of 1990 (CC BY-SA 4.0)