A few weeks ago we told you that Jay DeMarcus of Rascal Flatts and his wife, Allison, a CMT personality, were expecting their second child. Now we can tell you it's a boy. 

"For those of you who are asking, yes it's true! Ali and I are having a baby boy! He's due August 1! Whew! Gonna have a house full!"Jay tweeted on Tuesday (Feb. 28).

Jay and Allison's daughter, Madeline Leigh, was born on Dec. 17, 2010. Allison's sister, Amy, is married to James Otto, and their daughter, Ava Katherine, was also born in 2010.