Seth Rogen Explains His Hate for Justin Bieber

ABC NewsSeth Rogen Explains His Hate for Justin BieberABC NewsSeth Rogen is opening up about his tweet earlier this year that Justin Bieber was a "piece of s--t." "I met him a few times," Rogen told Howard Stern on Monday on his Sirius show. "He's a good example of someone, who you meet, who you think you are ...