She's Amelia Earhart and Jane Goodall and Joan Jett all rolled into one. She's really great to work with and amazing. She doesn't like the light of the business we call 'show.' She stays hidden, and that's where she likes it. But she's an amazing collaborator, and I feel like sometimes I have a map in my pocket that folds up and I pull it out and it's bigger than the table, and there's 1,000 places to go with her.Source.
I'm amused to hear him confirm that no, it's not that he sings like that because he's fucked up his voice over the years, it's that he's fucking up his voice because he's been singing like that for years. Heh.