Bieber isn't known for how moody he was as a teenager, so when we heard that he was the worst behaved guest on Saturday Night Live, we weren't surprised.
Bill Hader and Jay Pharaoh were guests on Watch What Happens Live with Andy Cohen just recently, and were asked by a fan who the worst celeb guest they've ever had was.
"I mean, we both know, dog" Jay said. Bill replied, "It was Bieber."
"He just was in a bad place...Maybe he's in a better place, but back then he was in a very…it was rough," Bill explained.
He added, "Everybody's usually on great behaviour. Bieber is the only one in my experience...he just seemed like exhausted or just at the end of a rope."
In 2013, Andy interviewed Howard Stern who also dragged Bieber for his attitude.
"Justin Bieber showed up with like 20 guys," he said. "He had a guy holding a slice of pizza. A guy holding a Diet Coke...You're trying to fight through all these people to get dressed."
It doesn't even end there. A former intern named Mariah Smith took to Twitter to back up the claims.
"I remember interning at SNL when Bieber was there, and he sucked. he also hit on a few of the interns and took a pretty intense call w selena lmao but guess what WE STILL STAN BIEBER OKAY," she wrote.