1990
- After 7 (3 weeks)
- Al B. Sure! (2 weeks, inc. 1 week with Quincy Jones)
- Babyface (1 week)
- Bell Biv DeVoe (3 weeks)
- Regina Belle (1 week)
- The Boys (1 week)
- Mariah Carey (3 weeks)
- En Vogue (3 weeks)
- Johnny Gill (5 weeks, inc. 2 weeks with Stacy Lattisaw)
- Whitney Houston (2 weeks)
- Janet Jackson (2 weeks)
- Quincy Jones (4 weeks, inc. 2 weeks with Ray Charles and Chaka Khan; 1 week with Al B. Sure!, James Ingram, El DeBarge and Barry White; 1 week with Tevin Campbell)
- Stacy Lattisaw with Johnny Gill (2 weeks)
- M.C. Hammer (1 week)
- Pebbles (3 weeks)
- Prince (1 week)
- Samuelle (2 weeks)
- Skyy (1 week)
- Lisa Stansfield (3 weeks)
- Keith Sweat (1 week)
- The Time (1 week)
- Tony! Toni! Tone! (6 weeks)
- Ralph Tresvant (1 week)
- Troop (3 weeks)
- Ruby Turner (1 week)
Read more about this topic: List Of Artists Who Reached Number One On The Billboard R&B Chart