Justin Bieber Spanked by Zach Galifianakis on 'Between Two Ferns

The host also gives the pop star a stern talking-to and addresses the Anne Frank-Belieber scandal.

Justin Bieber spanked by Zach Galifianakis in the funniest

Justin Bieber Spanked by Zach Galifianakis on 'Between Two Ferns

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Zach Galifianakis pulls off his belt and spanks Justin Bieber

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Justin Bieber Spanked by Zach Galifianakis on 'Between Two Ferns

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Justin Bieber gets spanked by Zach Galifianakis on Between Two