Dick Van Dyke Celebrates 90th Birthday With A 'Mary Poppins' Flash Mob That Will Melt Fans' Hearts — VIDEO

If this isn't supercalifragilisticexpialidocious, then I don't know what is. On Sunday, Dec. 13, the legendary Dick Van Dyke celebrated his 90th birthday. Of course, with such a milestone comes an extravagant celebration, including a Mary Poppins flash mob and a special birthday processional at Disneyland honoring the man who brought chimney sweeper Bert to life, alongside Julie Andrews.

On Sunday, Van Dyke went to The Grove in Los Angeles, where he was surprised with a flash mob of some of his biggest fans wearing costumes from Mary Poppins and singing all of the hits, including "Supercalifragilisticexpialidocious," "Jolly Holiday," and "Step in Time." The actor watched from a balcony overlooking the flash mob, where he laughed, sang along to each song, and enjoyed every single moment.

In typical Van Dyke fashion, he greeted the flash mob and even sang "Let's Go Fly a Kite" with them. As showcased in the video below, he said with a huge smile on his face, "I had to join in." Is there really any other way to celebrate turning 90? When it comes to Van Dyke, who will forever remain an icon in Hollywood, this was beyond perfect.

He even took to Twitter to express his gratitude, where he wrote, "I am very grateful that at 90 years old, I can still go out and play!!"

So are all of your fans, Dick. Thank you for 90 wonderful years and making Mary Poppins that much more enjoyable.