Kelly Clarkson Welcomes Baby Girl

(Undated) -- It's a girl for Kelly Clarkson. The "American Idol" alum shared the news over Twitter yestereday, revealing the arrival of her first child on June 12th. Clarkson says she and husband Brandon Blackstock named their daughter River Rose Blackstock, adding that they are "on cloud 9!!" The Grammy winner announced she was expecting in November.