Country singer Kenny Rogers is keen to go on tour with his longtime friend and collaborator Dolly Parton, but admits his crazy work schedule is too much for her.

The musical duo have a new single out, titled You Can't Make Old Friends, and Rogers reveals he would like to hit the road with the I Will Always Love You hitmaker to perform it, but explains they'd have to work out all the details first.

He tells U.S. breakfast show Today, "We've talked about it, but she can't work like I do. I work, like, 15 days in a row and she said, 'I just can't do that,' so I think we're trying to work something out."