Kristin Cavallari and Jay Cutler welcome a baby boy

Former "Hills" star Kristin Cavallari gave birth to a bouncing baby boy on Wednesday (Aug. 8) and announced the good news to fans on Twitter.

"We are thrilled to welcome Camden Jack Cutler into the world. He was born this morning weighing 7lbs 9oz. Everyone is doing great!" Cavallari, 25, writes.

Camden is the first child for Cavallari and her fiance, Chicago Bears quarterback Jay Cutler. After calling off their engagement in July 2011, Cavallari and Cutler announced the wedding plans were back on in November. Then just two months later, news came that the couple was expecting.