Rob Lowe Shares a Shirtless Birthday Selfie With Lookalike Son John

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For Rob Lowe's 52nd birthday, he gave us a present!

The actor shared a shirtless selfie with his 20-year-old son, John, via Instagram on Thursday, captioning the Instagram, "Celebrating my #birthday with a #workout and @johnnylowe. Whatever your age, be your best!"

WATCH: Rob Lowe on Embracing His Age

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Celebrating my #birthday with a #workout and @johnnylowe Whatever your age, be your best! #men #results @profile4men

A post shared by Rob Lowe (@roblowe) on

That's a good best, Rob. That's a very nice best.

During his Hollywood Walk of Fame Ceremony last December, The Grinder star talked to ET about how he was embracing getting older.

PHOTOS: Hollywood's Sexiest Shirtless Men

"Listen, I'm fully embracing the old man moniker. They're hot, they're young, they're on it," he joked of his sons, who, along with his wife, Sheryl, were also at the ceremony. "I'm old. I'm on my way out, everybody knows it."

Oh, please Rob. We'd kill to hit our fifties looking like you do!

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