As an in-demand artist and producer -- especially noted for his work with Amy Winehouse -- Mark Ronson certainly hears his share of music, good and bad. But one influence that might come as a surprise is Train. Ronson reveals to MTV that he has "deep-rooted love" for the Bay Area pop-rock band's breakthrough hit 'Drops of Jupiter.' "I don't really believe in guilty pleasures," he says, unapologetically. Apparently, neither does Amy Winehouse.