Actor Seth Rogen isn’t sorry for what he feels about Justin Bieber and the infamous tweet he sent out after Justin’s arrest in January.

Rogen said: "All jokes aside, Justin Bieber is a piece of s—t. Oh, it's because, in my opinion, Justin Bieber is a piece of s—t. He seems like he is obnoxious and ungrateful and insincere. He puts people's lives in danger with his horrible, horrible behavior. And overall he acts like a piece of s--t."


Rogen also revealed which celebs he has, and has NOT smoked weed with.