Actor-comedian Seth Rogen has branded pop star Justin Bieber "a piece of s**t" following his arrest in Miami.
The "This Is the End" star lashed out at the 19-year-old singer on Twitter after he was charged with drunk driving, resisting arrest and drag racing on Thursday morning, reports contactmusic.com.
The 31-year-old tweeted: ''All jokes aside, Justin Bieber is a piece of s**t.''
The post was shared by more than 70,000 other users within four hours.
Rogen's blast will come as a surprise to some fans as he was spotted bonding with the Canadian singer at the MTV Video Music Awards at the Nokia Theatre here in 2011.