Clarkson, of course, isn't new to country music � she previously dueted with both Jason Aldean on "Don't You Wanna Stay" and Vince Gill for her song, "Don't Rush," but this was her first time playing a country music festival. "I've been nervous all day because I wanted to be good for you!" she told the crowd.

On the new song, which seemed to win over the country fans, Kelly talks about her upcoming nuptials to fianc�, Brandon Blackstock, who proposed in December.

Clarkson sings about setting the date, hiring a band and cutting the cake. She then feistily sings, "Every wall needs a frame/Every ball needs a chain/ I'm talkin' about tying the knot/ Tie It Up."