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."
Justin Bieber, "un sale gosse" chez Les Experts by Europe1fr
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.
(Thanks to Gawker for the head's up on the interview)