The Anne Frank House confirmed to CNN that its Facebook post carrying Bieber's message was authentic.

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The Canadian singer's comment was quoted on the Anne Frank House Facebook page following his visit on Friday evening.

BBC: Anger over Justin Bieber's Anne Frank message

That's what Bieber, 19, wrote in the guestbook at the Anne Frank House when he visited there Friday, according to the Amsterdam site.

CNN: Justin Bieber hopes Anne Frank 'would have been a belieber'

"The Anne Frank House was pleased to welcome Justin Bieber to the Anne Frank House last Friday, " an official Facebook post said Monday.

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Bieber, who is in the middle of a European tour, stopped by the Anne Frank House between his concert in Antwerp, Belgium, and a Saturday performance in Arnhem, Netherlands.

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The Anne Frank House told Judge Bade it was in favour of felling the tree, out of concern for the safety of the building and the hundreds of thousands of visitors it receives each year.

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Charlotte Louise Claydon makes a plea on the Anne Frank House Facebook wall for Bieber to visit the museum when he is older "and hopefully wiser" so that he can "understand the messages of peacefulness, humility and respect that are wound within those walls".

BBC: Justin Bieber on Anne Frank: Five interpretations

Five more pages of the Diary of Anne Frank - the Jewish girl who hid from the Nazis in an Amsterdam house during World War II - have been found by researchers in the Netherlands.

BBC: News | Europe | New Anne Frank Diary pages found

Anne Frank hid with her family in the "secret annex" of an Amsterdam house for two years before she was captured by Nazis in 1944.

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