OK, so you’ve seen Ludacris perform with Jason Aldean, and then there was that T-Pain appearance on the CMT Music Awards a few years back.

But don't expect Carrie Underwood to do any collaborating with hip-hop artists anytime soon.

“I don’t know if they’d want me,” Carrie told E Online, laughing. “We did this sketch once in college. . . . We said we were going to start a new music. It was country and rap and we were going to call it crap music.”

In that same interview, at the iHeartRadio Music Festival in Las Vegas, Carrie said she and hockey hubby Mike Fisher aren’t having any kids in the immediate future.

“Mike and I are both so busy. We want to do what’s best for us and our future children. Anytime within the next few years would just be bad.”