Josh Kelley has plenty to sing about these days.

In addition to releasing his new album, Special Company, he's still basking in newly wedded bliss with his wife of one month, Katherine Heigl.

"It just feels unbelievable to be married. I thought that being married wasn't that different from dating, but actually it is so different," the singer/songwriter, 28, told People magazine Thursday in Chicago.

"As a husband, my mentality changed from being a boyish man to a man's man."

In fact, Josh Kelley's courtship with the Grey's Anatomy star, 29, has been what he calls a crash course in emotional maturity.

"When we first met, I could tell that my A.D.D. would definitely frustrate her a little bit," Kelley said. "It's like ... I would be drawing on paper tablecloths when I should have been engaging in conversation. Things like that. No one ever told me that before. Nobody ever cared. But she does. And I like that."

The two, who didn't even live together until after the ceremony, have settled easily into a nice domestic routine. Katherine Heigl has had plenty of time to nest, thanks to the writers' strike, so that's been a silver lining at least.

"We cook together," he said. "She is a great cook. I am a good helper chef. I'm good with the grill and good with taking chances with certain spices."

But what about the L.A. club scene? According to the singer, you won't be seeing Josh Kelley and Katherine Heigl at Hyde or Les Deux anytime soon.

"We are not a typical Hollywood couple at all," Kelley explained. "We stay in. We cook, we watch Dexter, and I make music and paint. It's fun."

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.