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John Stamos Celebrated Mary-Kate Olsen's Wedding With An Adorable Throwback Pic

'In the blink of an eye.'

John Stamos is quietly emerging as a throwback photo maestro -- though, to be honest, sometimes it's a little hard to tell the new pics from the old because he's clearly been drinking the same youth juice that makes Paul Rudd decade-hop without so much as a wrinkle.

To celebrate the recent nuptials of Mary-Kate Olsen and her long-time beau Olivier Sarkozy -- whose wedding Olsen's former on-screen dad Bob Saget confirmed in a kinda sad story about not getting invited -- Stamos shelled out an oldie but a goodie.

Stamos, a.k.a. Uncle Jesse, posted this vintage pic of himself with MK and her sister Ashley (collectively known as Michelle Tanner on "Full House" but sadly not "Fuller House") enjoying a sunny moment at Disneyland. He captioned the snap, "'In the blink of an eye.' Congrats MK. X"

Mary-Kate and Sarkozy, a banker and the brother of former French president Nicolas Sarkozy, were engaged for a year and reportedly wed in New York over the weekend.

Saget told the "Today" show that he was "not invited" to the ceremony, but did send "a 'mazel tov' text" to his former on-screen daughter. "I'm very happy," he added. "I love her very much. I hope they're happy."

Stamos, who initially expressed a great deal of disappointment over the Olsen twins' decision not to reprise their shared role as the littlest Tanner girl, has been on kind of a roll with these twin-tastic photos lately. Just a week ago, he posted this side-by-side shot of one of the Golfieri twins (who play baby Edie on his new show "Grandfathered") and one-half of the Olsen duo from back in the day.

Awwwwww.