Hasn't she been through enough?

Look, we can't expect anything better from him. Of course Justin Bieber, still upset over having left his pet monkey at an airport, would write in the Anne Frank House guestbook that he hopes "she would have been a belieber," aka, a fan of his. You can't ask someone who's been a global superstar since he was a tween to not make it all about him. Since before he could grow pimples his job has been to get on stage and accept the hysterical adoration of thousands of teen girls. So naturally, he mistakenly assumes the happiest a teen girl can be is when she's listening to his music/shrieking at his abs in concert.

Sources: Anne Frank House on Facebook | Huffington Post