Canadian pop singer Justin Bieber performs at his "Justin Bieber, My World Tour" concert at Sentul International Convention Centre in Bogor, Indonesia West Java province, April 23, 2011.[Photo/Agencies]

Justin Bieber says "CSI" star Marg Helgenberger is "kinda lame" for calling him "a brat" in a recent interview.

The teen idol took to Twitter on Monday to scold the actress for her comments and to deflect a separate report about his alleged misbehavior on a Qantas flight.

Helgenberger was widely quoted during the weekend as saying that Bieber, who appeared on two episodes of the long-running crime show, acted inappropriately on set.

"I shouldn't be saying this but he was kind of a brat," she told French radio network Europe 1. "He was very nice to me. But he locked one of the producers in a closet and he put his fist through a cake that was on the cast's table."

Bieber replied, via Twitter: "It's kinda lame when someone you met briefly and never worked with comments on you. I will continue to wish them luck and be kind."

A publicist for Helgenberger did not reply to an email seeking comment.

And on another subject, Bieber questioned the newsworthiness of a minor incident during his recent tour in Australia.

Local media said a flight attendant ordered Bieber to return to his seat after he strolled down the aisle as the plane was preparing to take off. Australia's SkyNews reported that she told him that "his behavior was a security risk and that he had been acting like a child and would therefore be treated like one."

Commented Bieber: "She was right and I sat down. That's news?"

He added: "I know who I am and sometimes people are just going to say what they want. Keep your head up and be the man your mama raised." (Reuters has edited the spelling.)

Justin Bieber is 17.