Women in Music 2016

Watch Seth Rogen End His Justin Bieber Beef on 'Ellen': 'It's All My Fault'

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Actor Seth Rogen joins “The Ellen DeGeneres Show” during "Bieber Week" on Wednesday, Nov. 11th and talks about his recent ‘beef’ with Bieber and how they made up backstage.  Seth also shares what it’s like to be shirtless with co-star Zac Efron and what happens when they order pizza while filming "Neighbors 2." Plus, Seth chats about his new movie “The Night Before” and how they had giant masks made of each actor to help promote the film, watch as Seth gets surprised by a special guest wearing his mask.

Seth Rogen may not have known what he was getting into when he stopped by Ellen during Justin Bieber Week.

Rogen and Bieber have a bit of a history, with Rogen saying on Watch What Happens Live in 2014, "In my opinion, Justin Bieber is a piece of shit. He seems like he's obnoxious and ungrateful, insincere, and he puts people's lives at danger with his horrible, horrible behavior, and overall he acts like a piece of shit" -- among other not-so-nice comments.

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On Ellen, Rogen cleared the air. "We had a beef," he explained. "I called him some really mean things on Twitter. I can't tell you why I did it. It really hurt his feelings, as it should have. A lot of people got very angry. All this time I'd only met him once. I finally saw him today in the hallway of your show. It's all my fault."

Bieber, for his part, showed there are no hard feelings now. Check out why below: