UPDATE: See The First Picture of Kelly Clarkson's Baby Girl!

Kelly Clarkson is now a mom! The 32-year-old superstar and her husband of less than a year, Brandon Blackstock, welcomed baby girl River Rose on June 12. The singer, already step-mom to a son and daughter from Blackstock's previous marriage, shared the news on Twitter, saying, "Our baby girl River Rose Blackstock arrived on June 12th! Thank you everyone for all of your well wishes! Brandon and I are on cloud 9!! :)

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And UPDATE: On June 20th, Kelly shared the first photo of her baby girl in a gorgeous Silver Cross Chatsworth Poppy Doll Pram via—what else?—Twitter. Kelly also gave a Twitter shoutout to their baby photographer, so if you're looking for one...

Clarkson has been open about her tough pregnancy, canceling scheduled appearances and telling Savannah Guthrie before a performance on the Today Show, "I don't know why they call it morning sickness because it's like all day and all night," she said while laughing. "I'm super excited about being pregnant. I'm just looking forward to the second trimester. They say it's better."

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And if you take a few minutes to check out Kelly's twitter feed, you can tell she's been in better spirits lately—watching trashy TV, gardening and playing "mom" to a brand new puppy:

That River Rose certainly is a lucky lady—Congratulations to the entire Blackstock family!

Share your congratulations with us on Twitter @OKMagazine.