What a difference a year makes! Twelve months ago, Levi Johnston was wearing a suit and standing alongside Bristol Palin, who was carrying his baby, while her mother, Sarah, campaigned as the vice presidential candidate. Now the 19-year-old is ditching the suit and tie in favor of his birthday suit, instead. According to his manager, Tank Jones, Levi will pose completely naked for Playgirl on November 16. "Everything's gonna hang out. We're talking 'Full Johnson,' " his manager told tmz.com.