These are the Billboard magazine Hot R&B/Hip-Hop Songs chart number-one hits of 1990. There were 36 number-one singles, the longest number-one single was Pebbles' "Giving You the Benefit", which spent three weeks at the summit. Chart history See also 1990 in music List of number-one R&B albums of 1990 (U.S.) List of Billboard Hot 100 number-one singles of 1990 References 1990 1990 record charts 1990 in American music