I’m just surprised as you are, and further surprised by the fact that he has a singing group! This is either well known, or I’m sadly behind.
If you’re interested in seeing Dick Van Dyke and the Vantastix (they have an album!!) then mosey over to the Dear Old Hollywood blog for details.
If anyone attends, please tell me all about it! Guest “commentator” blog posting for you if it’s a nice review! :D