WATCH: Dick Van Dyke’s 90th Birthday Flash Mob — Disney Video!

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Dick Van Dyke turned 90 years old on Sunday with a big production number — as his 44-year-old bride worked with Disney to gift him with a parade of chimney sweeps!

Arlene married Dick back in February of 2012, and helped organize the flash mob as a special surprise for her husband!

The star of “Chitty Chitty Bang Bang” marveled and cheered on his admiring fans as they danced about at The Grove entertainment complex in Los Angeles.

There were lots of chimney sweeps, but also many shouts of “Supercalifragilisticexpialidocious!” for the star of “Mary Poppins.”

It was a triumphant birthday for the showbiz legend, who — as revealed by The ENQUIRER — managed to recover from an early career that was fueled by booze and drugs!

“I am very grateful,” declared Dick, “that at 90 years old, I can still go out and play!”

Dick’s spirited birthday celebration also reminded readers of The ENQUIRER about how Dick cheerfully dismissed the couple’s age-gap when he first married Arlene.

“She’s very mature for her age,” said Dick, “and I’m very immature for my age, so it’s just about right!”