Help on this tune from the 80's (or the 70s)

Hello, I don't think this is a rare song, but I can't find it.
It could be a 80s' cover of a 70s' song. And I'm sure I know this group.
Can somebody help?
Thanks
Simone from Italy

Its based on the famous jazz song "On the Sunny Side of the Street'

Maybe this info can help you...

yes!! thanks ageofhouse, huge clue.
Simone