'SNL' Star Says Justin Bieber Was 'Worst-Behaved' Guest, But Why? Find Out!

Saturday Night Live vet Bill Hader is explaining why he thinks Justin Bieber was the “worst-behaved” guest on the show!

The comedian dished on Justin‘s appearance during a recent episode of Watch What Happens Live with Andy Cohen.

“I mean, we both know,” Bill‘s fellow talk show guest Jay Pharaoh started after a fan question.

“Yeah, it was Bieber,” Bill agreed. “He just was in a bad place. Maybe he’s in a better place, but then he was in a very … it was rough.”

Bill added that, usually, celebrity guests are “on great behavior” and “everyone is very excited. Bieber is the only one in my experience – he just seemed like, exhausted or just at the end of a rope. He was just so huge.”

Justin served as the host and musical guest of a February 2013 episode. At the time, he was in the middle his Believe world tour and had recently split from his on-again, off-again girlfriend Selena Gomez.