WATCHSee Patrick Stewart Try Not to Laugh While Wearing a Silly Singing Christmas Hat!

It's the Christmas hat of all Christmas hats!

On Dec. 24, 'Star Trek' star Patrick Stewart's wife, Sunny Ozell, shared a hilarious video of her 74-year-old husband trying to keep a straight face while wearing a totally silly elf cap.

And — spoiler alert! — the actor can barely control his laughter while donning the festive singing hat!

Watch the cute clip below.

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