It seemed like Bieber was trying to educate himself about world history and the horrors of Nazi occupation when he visited the Anne Frank House in Amsterdam in 2013 — that is, until the historical site shared what the Biebs wrote in its guestbook.
"Truly inspiring to be able to come here. Anne was a great girl. Hopefully she would have been a belieber," he wrote. Needless to say, scores of people were offended and couldn't believe that Bieber was self-absorbed enough to leave such a comment.