Kevin Costner and his son Cayden
10/16/2008 at 11:00 AM EDT
Kevin Costner and wife Christine are expecting their second child, a rep confirms to PEOPLE.
The actor, 53, and Christine, 34, were married in Colorado in 2004
. The couple's first son, Cayden Wyatt, was born
in May 2007. Costner also has three children from his first marriage to Cindy Silva.
Before baby, though, Costner has a different kind of celebration. His country music album
will be released in November.
For more information on Christine’s pregnancy, visit PEOPLE's Celebrity Baby Blog