“American Idol” winner and country superstar Carrie Underwood is appearing on “Oprah’s Next Chapter” Sunday, May 20. Check out these preview videos of her appearance.

Carrie on marriage:

“I feel like the longer I am married and will be married, the more – at first, it was weird, I can’t believe I’m married … but now, the more I do it, the more I’m able to think more of ‘we.'”

Carrie on things she likes to do for herself:

“Laundry, even when we’re on the road. Laundry and grocery shopping. And it makes tour life a little difficult because those are things I really don’t have time to do. So that’s what I do on my days off. We go to the laundromat. I get my quarters and we go to the laundromat. I just don’t like other people doing my laundry, it freaks me out.

Carrie on kids with husband Mike Fisher:

“He’s gonna be the best dad ever and that makes the whole parent situation seem much, much better. He grew up, he has three siblings. I think two is a good number to have. We’ll see, we’ll cross that bridge. I don’t want too many.”

“Oprah’s Next Chapter” airs Sunday nights at 9 p.m. ET/PT on OWN.