Bieber is under fire for a comment left in Anne Frank's guestbook.

Recently, Justin Beiber left a message at the Anne Frank Museum which has stirred some controversy among critics.

The 19-year-old pop star signed a note in the guestbook stating “Truly inspiring to be able to come here. Anne was a great girl. Hopefully she would have been a belieber." The museum, located in Amsterdam is dedicated to the life of the young Holocaust victim, Anne Frank, who kept a diary of her struggles and later passed away in a concentration camp at age 15.

His comment spread like wildfire over the internet with many people calling him insensitive.

Museum authorities, however, were not critical of him, stating “He's 19. It's a crazy life he's living, he didn't mean bad… and also it's nice that he made the effort, he didn't have to come.”

No matter what controversy surrounds Bieber, he remains unstoppable. Five schools in Norway recently decided to move the originally scheduled midterm dates to account for a Bieber concert, knowing students would skip school to go to the singer’s show.