It's very unfortunate that I can't find much information about Urban Knights on the internet because they deserve much more attention that I believe they get. Quoted from www.musicianguide.com:
The smooth jazz group Urban Knights has brought together some of the best-known names in the field of smooth jazz, along with rising new talent, for a series of albums showcasing both new music and covers. The group's original lineup, created for a self-titled debut in 1995, featured Ramsey Lewis on piano and Grover Washington, Jr. on saxophone, backed up by Omar Hakim on drums and Victor Bailey on bass. As the mainstay of the group, Ramsey Lewis is the only member who has been with the group since its inception, appearing on all of their albums. The group's releases include Urban Knights in 1995, Urban Knights II in 1997, Urban Knights III in 2000, Urban Knights IV in 2001, and Urban Knights V, which hit music store shelves in 2003.
To read more about this group visit this link: http://www.musicianguide.com/biographies/1608003988/Urban-Knights.html
I must also give a high-five to the fact that on most of the covers they've used the art of one of my favorite artists Charles Bibbs. Very cool!
If you want to hear a sample of their style the only link I could find was this one at Amazon.com. Scroll down to the bottom where the samples are selected and just listen. I'm sure you'll enjoy it.