David (on if taking a class on The Beatles made it easier to sing their songs): With The Beatles, it's really tough to cover them -- like it's hard to cover a Whitney [Houston] or a Celine [Dion] song. It's very challenging because people already have it set in their minds how it's supposed to sound. It's hard to change it and make it your own. I did the best I could and I kind of made it my own. Just because I took [the class] doesn't mean I was going to sing the song any better.