I’ve been told (repeatedly) that Dick Van Dyke’s cockney accent in Mary Poppins is such an affront that it’s a miracle the Brits didn’t go to war over it. I don’t care. When I was just a little knee-high Puchko, my dad and me would mimic it and sing “Chim Chim Cher-ee” until I collapsed into a tangle of giggles and exhaustion. To this day, the song overwhelms me with tears of joy. So, I was a mess about 10 seconds into this video of this Mary Poppins mash-up flash mob to celebrate the iconic comedian’s 90th birthday.

It’s supercalifragilisticexpialidocious.

Also never forget: Van Dyke had it going on.

H/T Vulture

Kristy Puchko was crushed when she learned “chimney sweep” was no longer a viable career option.

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Kristy Puchko is the managing editor of Pajiba. You can follow her on Twitter.