From the 1987 Tony Awards and from the musical, Me and My Girl, here's Robert Lindsay leading the troupe in the infectious number, "The Lambeth Walk."
You can't see him very well but the tall, dignified gent in the tux near the center of the stage in some shots is George S. Irving, a longtime Broadway actor — he's 85 and still performing — whose voice could be heard on about half the cartoon shows that were produced in New York in the sixties. He was the narrator on the Underdog show and he did those Twinkles commercials (like this one). But don't spend a lot of time looking for him. Just enjoy this fine piece of theatrical merriment…