Black Sheep Syndication

After a show in the Netherlands on Saturday night, Justin Bieber spent the rest of the weekend sight-seeing in Amsterdam, but his stop at the Anne Frank Museum ruffled a few feathers. "Truly inspiring to be able to come here," Bieber wrote in the museum's guest book. "Anne was a great girl. Hopefully she would have been a Belieber."

We're sure his heart was in the right place, but maybe that wasn't the best thing to say! Bieber has today off, and after relaxing for the next few hours, he'll head to Norway, where he has three shows in a row at the Telenor in Oslo. So what else has the 19-year-old singer been up to? Posting shirtless pictures and mocking his haters, natch!

Justin tweeted the shot below and wrote, "Uh oh @justinbieber is losing it taking shirtless pics in the mirror" -funny people ... Breaking news worldwide @justinbieber just posted 2 shirtless pictures he must be going crazy" -funny people #forthefansanyways #dontbecreepin :p."

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Click thru for another shirtless shot of Bieber!