There's good artists, and then there's great artists - here's my selection:

En Vogue
Warren G
Toni Braxton
Will Smith
Blackstreet
Me'shell Ndegocello
Coolio
Adina Howard
Erykah Badu
George Michael
TLC
Soul II Soul

The links above are to unofficial (and one or two official) web-sites for the artists, created by people much more dedicated than me to keeping their sites regularly updated.  I should thank them and others on the web for all the images used.  If there are better sites out there, or other links I should have included, let me know.

There's also a good search page, with links to almost any artist on the web, so if you don't like what I've chosen to include here, you can go find something about someone you do.