Carrie Underwood, Steven Tyler's 'Super Bowl Fan Jam'

Country superstar Carrie Underwood and rock legend Steven Tyler are teaming up for a "Live from Pepsi Super Bowl Fan Jam" from Indianapolis that debuts on CMT Saturday, Feb. 4 at 11 p.m. ET/PT. The two previously performed together at the Academy of Country Music Awards in 2011.

"I'm excited about our opening. I don't want to give away too much," Carrie tells CMT.

"And I'm excited about a marriage of two songs that we put together, which is phenomenal," says Tyler.

Tyler adds that the surprises in working together came from Tyler see that Carrie "has a real hard side, and she got to see my soft side."

"I knew that was there! You're a sweet guy," Carrie adds.

"Her band and her voice are so beautiful. And these country players - forget about it," Tyler adds. "They're good. We're so good."

"They're good. He's good," says Carrie.

Well, we can't wait to see it.