For his latest album 'Illuminations,' Josh Groban was much more involved in the writing process. Working with famed rock 'n' roll producer Rick Rubin (Metallica, Slayer, Green Day), he admits he was pushed by the super-producer. The result is a more personal album, which hits stores on November 15. "I'm definitely anticipating some questions from people in my life -- whether some of these songs are about them," he tells PopEater.