Kelly Clarkson brushed off her recent recording studio mishap to celebrate her son Remington's first birthday this week. The "Piece by Piece" singer, who welcomed her little boy with husband Brandon Blackstock in April 2016, shared a few photos from the adorable celebration on Instagram on Wednesday. "Happy 1st Birthday to our sweet little boy!! #RemyB #BlackstockCampgrounds #ILoveHim," she captioned the snaps of Remington enjoying his cake and playing on a rocking horse. While the couple's 2-year-old daughter, River, wasn't in the photos, we have a feeling she was right there for the party. Kelly and Brandon, who celebrated their third wedding anniversary in October, are also parents to Brandon's two children from a previous relationship, Seth and Savannah.