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It’s his party, and he can sleep if he wants to!

Yesterday was Mason Disick‘s 3rd birthday, and it looks like this little guy had a long day.

From hitting up a museum in Miami, followed by the zoo, this little tot was pooped by the time it came down to his birthday finale.

The little Kardashian member arrived for dinner at Serendipity 3 in Miami Beach for the last part of his b-day celebration, and was already full of yawns while nodding off in the car.

PHOTOS: Khloe Kardashian Takes Mason & Kourtney To The Beach

Although he may have been nearly ready to catch some Zs, Mason looked fresh to death in an outfit that was most likely inspired by his daddy Scott Disick, wearing a white button-down, green jeans, and some brown loafers.

Most of the Kardashian klan was in full effect for the occasion. Aunties, Kim and Khloe Kardashian made sure they made it dinner. Kim shared a bit of her food dilemma on Instagram and Twitter, posting:

At Serendipity & really want this frozen hot choc but gonna be good & eat this tuna salad instead

Good job Kimmy!

It must have been one raging day for the country’s most stylish toddler, because the fatigue caught up to Mason and he barely made it through the dinner before knocking out!

VIDEO: Nice & Slow! Scott & Kourtney Sing Usher, Mason Begs Them To Stop

But his sister Penelope Disick was also in attendance for her big brother’s day, as she was carried by mommy Kourtney Kardashian into the restaurant, and adored by Khloe once they all got inside.

What a great day for the family to all come together!

Check out photos from Mason big 3 celebration in the accompanying gallery.