Butch Walker admits that the ongoing meltdown of the music business has affected his wallet in a pretty gnarly way. "My living is done through producing records, but that living has dwindled immensely over the years with people not having to buy music," he says. If Walker's name doesn't ring a bell, some of the songs he has written or produced certainly will: Katy Perry's "Thinking of You," Avril Lavigne's "When You're Gone," Weezer's "(If You're Wondering If I Want You... More >>>