Justin Bieber had a memorable performance on "CSI" recently -- but the only thing "CSI" star Marg Helgenberger remembers ... is that he "was kind of a brat."
Helgenberger appeared on French radio show "Le Grand Direct des Médias" on Friday where she prefaced the slight with "I shouldn't be saying this, but ..." Always a good sign!
She also said the Biebs locked a producer in a closet and put his fist through a cake.
Good thing she never had to work with Charlie Sheen.
Source: tmz.com
Tags Justin Bieber