Marg Helgenberger: Justin Bieber a "brat" on "CSI" set
(CBS) Not everyone has a case of "Bieber fever." "CSI" co-star Marg Helgenberger called the teen popstar a "brat" after the two worked together last year.
Bieber made his acting debut last year on two episodes of the CBS drama series.
Pictures: Magnificent Marg Helgenberger
Pictures: Justin Bieber
In an interview with French Magazine Le Grand Direct des Medias, Helgenberger admitted, "I shouldn't be saying this but he was kind of a brat [on the set]."
"He was very nice to me," she continued, "but he locked one of the producers in a closet."
Bieber also "put his fist through a cake that was on the craft service table."
Despite his off-screen antics, the Hollywood Reporter notes, Helgenberger admired Bieber's acting skills.
"He's actually better than you'd think," she said.
This isn't Bieber's only acting experience on-screen. The popstar starred in the hit concert documentary "Never Say Never." According to the Huffington Post, Bieber is reportedly in talks with "The Fighter's" Mark Wahlberg about an upcoming film.