Justin Bieber will be the star of his very own “Diary,” airing Sunday at 7:30 p.m. ET on MTV, and in it, he interacts a lot with his fans. The most important questions of all are raised in the special: Would Bieber ever date a fan? and does he have a girlfriend?Fans can get a … Continue reading Justin Bieber Says He ‘Could Date A Fan’ In ‘Diary’ Sneak Peek