Justin Bieber's boss fires back at CSI complaints

Justin Bieber's manager has taken aim at Csi: Crime Scene Investigation bosses who labelled the Baby singer a brat after he appeared on two episodes of the TV drama, insisting they forgot they were working with a teenager.

The pop star, who played a young thug on the shows, wasn't popular with some of the cast and crew members and really upset one producer by reportedly locking him in a closet.

Bieber's manager Scooter Braun heard nothing but positive reports from his team on the film set and he was stunned when he heard the backlash.

Braun tells Rolling Stone magazine, "The producer gets on (the phone) - he's a stuffy dude, and he's like, 'Justin is incredibly unprofessional. He put his hand in a cake, he locked me in a closet...'

"I said, 'Let me ask you a question. When he locked you in the closet, did you tell him you were angry?' He goes, 'No, I needed him to work, so I laughed.' And I said, 'So he saw you acknowledge his joke and say it's OK? Then you're more to blame than him. He's a kid - he's waiting for someone to tell him where the limits are.'

"At the end of the day, even in his most selfish moments you just need to point out that he's being selfish. He's more embarrassed about it than anything. When he's being a p**ck, he's not being a p**ck because he's famous. He's being a p**ck because he's a kid."