Zach Galifianakis returns with a new episode of his Funny or Die series 'Between Two Ferns.' In previous episodes Zach has visited with Jimmy Kimmel, Natalie Portman, Will Ferrell just to name a few, but Justin Bieber going between the ferns might be the best yet!

Zach asks Bieber about his recent escapades, like peeing in a bucket, his Anne Frank comment and of course his use of pot, which leads to Zach taking off his belt and spanking Biebs!