Dick Van Dyke may be 90, but he has kept the magnificent voice that has made him such a popular actor and entertainer.

Almost 50 years after he starred in Chitty Chitty Bang Bang, the actor popped into an American diner where he and his quartet The Vantastix surprised everybody with a catchy performance of one of his most memorable hits.

Dick played eccentric inventor Caractacus Potts in the 1968 movie, and he can still remember every word of the theme song, breaking into an a cappella performance.

Dick Van Dyke in the Chitty Chitty Bang Bang car
Dick Van Dyke in the Chitty Chitty Bang Bang car (PA Archive)

Keeping up with the times, Dick wrote on Facebook: “Breakfast at Denny’s, with a side of grits makes me want to sing!!”

Dick Van Dyke
Dick Van Dyke (John Salangsang/AP)