Dwayne 'The Rock' Johnson Visits Children's National Hospital

— -- Dwayne "The Rock" Johnson loves kids.

And, based on the photo he shared on Instagram, they love him, too.

During a recent visit to Children's National Hospital in Washington, D.C., the actor met a little girl named Kara "who insisted I look at w/ great admiration her beautiful, bright blue nail polish!" he wrote.

"Wow... I'm speechless! #InterestingHowMeetingChildrenLikeMsKara #HasAFunnyWayOfPuttingLifeIntoPerspective #StayStrongLittleMsThang" he added. "#UncleRocksGettingHisBrightBlueManiPedi #UmmLetsJustPretendForNow #UncleRockNeedsToRemainAToughGuy"

The Rock, 42, is the most recent celeb to make time for children during the holiday season. Recently, Chris Evans surprised a 9-year-old who had brain surgery.

“I am more than happy," the 9-year-old told Evans. "I just want to say thank thanks for coming."