You recently recorded a duet with Dolly Parton. What's one thing about her that people may not know?

She truly is the most humble person I've ever been around ... One time I was staying in a hotel in Austin, and Dolly's tour bus was there. The receptionist told me, 'Dolly Parton's here, and guess what she did today! She invited all of the housekeepers up to her suite, and they had tea.' People don't know those little things about Dolly, but she really just wants to make people smile.