Waterworld star wife have boy.
Kevin Costner‘s wife Christine Baumgartner gave birth to new chip off ol’ block Hayes Logan Costner.
The lad weighed a lusty 8 pounds, 15 ounces.
Costner said Hayes is named after "a cowboy character" and is "a great Western name."
It’s the second for Costner and Baumgartner. First was Cayden Wyatt born in 2007.