See Kelly Clarkson's 'Beautiful Baby Girl' River Rose

— -- What a cutie!

Kelly Clarkson shared a precious picture of her baby girl, born just last week on June 12.

"Here is our beautiful baby girl River Rose; 6lbs 6oz, 18 inches, and the greatest thing on the planet :)," she wrote next to a picture of River in a red baby carriage.

Read: Kelly Clarkson Welcomes a Baby Girl

Related: Kelly Clarkson Marries Brandon Blackstock

Clarkson, 32, and her husband, Brandon Blackstock, shared the exciting announcement last week that they'd welcomed their baby.

"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!! :)" she wrote.

Clarkson announced in November that she was expecting and had said since day 1 that she knew it would be a girl.

Right before the pregnancy news, Clarkson married Blackstock in October. Clarkson and her husband tied the knot in a private ceremony with just Blackstock's two other children from a previous marriage present.