Over the weekend, Justin Bieber visited Anne Frank's old home in Amsterdam and dropped a bit of doozy in the guestbook and causing quite a stir amongst people who seem to have forgotten he's a teenage millionaire living in a crazy bubble. What did do you ask? Well, he said he hoped Anne Frank 'would have been a belieber'. Face. Palm.

While it's not something that most would think would be offensive, the Beebs has caused public outrage for writing the message in a guestbook at the Anne Frank Museum in Amsterdam, suggesting the Holocaust victim would have been among his legions of devoted fans, with users on Facebook and Twitter branding him insensitive and 'self-serving'.

In the 'Dam on Friday while his 'Believe' world tour continues moving through Europe, JB wrote: 'Truly inspiring to be able to come here. Anne was a great girl. Hopefully she would have been a belieber.' Because that's how far his world view can expand.

The message was publicised by the museum on its Facebook page, and of course the trolls of the world went batshit, saying that it was cheapening her legacy.

One commenter on the Facebook page blasted the 'Baby' hitmaker for turning the 'inspirational' moment 'into something about yourself'. Another called the stunt 'self-serving' and added: '[He] completely missed the lesson in front of him. Shows his complete LACK of Maturity. (sic)' Which are sort of valid points, but also? Chill the f*ck out people. Do you really think Anne Frank would have cared about what a teenage popstar thought of her. If anything it's going to drive more Bieber fans to the museum and hopefully educate them in the process.

A spokesperson for the museum defended the singer, however, telling BBC News: '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.' For once, we're sort of on Bieber's side. Sort of.