Justin Bieber and Marg Helgenberger'CSI: Crime Scene Investigation' star Marg Helgenberger called singer Justin Bieber "a brat" while giving an interview in France.

Bieber guest-starred on the crime series drama in February and RadarOnline.com is reporting that Helgenberger was asked about the singer and his role on the show in an interview in France.

Helgenberger was asked if Bieber's role was written just to raise sagging ratings, or because the singer is "truly a good actor."

The 52-year-old actress rolled her eyes and said, "Justin Bieber wasn't 'bad' bad. But he'd never acted before . . . He's better than you'd think."

Helgenberger then said, "I shouldn't be saying this, but he was kind of a brat."