There are multiple artists called Incognito:
1. An acid jazz project by Jean-Paul "Bluey" Maunick with deep roots in the 1970's jazz/funk/fusion world (active from 1979 to present) See below 1. for their discography.
2. A smooth jazz online group from Tupelo Records / IODA. No other information found about this unregistered band ("Buy at Insound" link is broken). They released similar or exactly the same title tunes/logo as the other Incognito above. (See below for details)