Seth Rogen Says Justin Bieber Is an Obnoxious, Ungrateful 'Little Sh*t'

Comic actor Seth Rogen is showing his serious side these days, and the latest target of his sober commentary is pop sensation Justin Bieber.

Late last month, Rogen testified before a Senate committee on the need to battle Alzheimer’s Disease. This week, Rogen shredded Bieber for the star’s litany of tabloid-worthy acts. Rogen appeared on Watch What Happens Live last night, and the subject of a recent anti-Bieber tweet by Rogen came up.

All jokes aside, Justin Bieber is a piece of s–t,” Rogen wrote on Jan. 23, just after Bieber’s DUI arrest.

A viewer reminded Rogen of the tweet, and the Pineapple Express star didn’t backpedal a step. Instead, he doubled down.

He seems like he’s obnoxious and ungrateful and insincere and he puts people’s lives in danger with his horrible, horrible behavior,” Rogen continued. “Overall he acts like a piece of s–t.”