Kelly Clarkson shares photo of baby River Rose

Awww! Proud mama Kelly Clarkson, 32, shared a sweet photo of her sleeping new baby girl, River Rose Blackstock, on Friday, June 20.

And look how cute...

"Here is our beautiful baby girl River Rose," she tweets along with the photo, "6lbs 6oz, 18 inches, and the greatest thing on the planet :)."

Kelly followed the tweet up with a shout-out to the photographer. "Thank you so much @Archetype_Photo @kobyb for the amazing pictures of our little girl!!" she writes. "Once again, y'all knocked it out of the park!!"

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Indeed, "knock in out of the park" they did! How cute is this baby? And how cute is this photo with that amazing vintage-style baby carriage filled with lace?!

A source for Radar Online says she's loving motherhood and is 100 percent focused on the baby, rather than on getting her body back ASAP (like many celebs).

“Don’t get me wrong," says the source, "she’s determined to lose the baby weight and certainly doesn’t want to stay at the weight she’s at, but she’s in no rush.... Right now she’s just relishing in her daughter and everything that motherhood has to offer.”

“Of course Kelly wants to be healthy and she has gym equipment in her Nashville home that she’ll utilize," the source adds, "but all that matters to her is her husband and baby."

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This is the first child for Kelly and her hubby, Brandon Blackstock. He's also got two kids from a previous marriage—Savannah, 11, and Seth, 7.

Love! xo Haley-O Celebrity Candy: Follow along as Haley Overland delivers the latest scoop on celebrity families — plus sweet celeb interviews! You can’t have too much of this candy, so check back often.