Taylor Momsen has been placed on ‘hiatus’ from Gossip Girl amid reports that her behaviour is becoming increasingly volatile. She’s only been in three episodes so far this fall, but after next Monday’s episode she will begin an ‘indefinite hiatus‘:

Although reps for The CW and producer Warner Bros. declined to comment, sources confirm that Momsen’s Jenny will be MIA for at least four episodes beginning with the show’s midseason finale on Dec. 6.

It’s not just her questionable wardrobe, and stage antics (think flashing her can-cans) but she’s pissed off people including Tim Gunn of Project Runway who appeared on an episode last month:

“What a diva,” he told E! News. “She was pathetic, she couldn’t remember her lines, and she didn’t even have that many. I thought to myself, ‘Why are we being held hostage by this brat?’”

Someone on the inside of the show says her reduction in lines is also for ‘creative reasons’.

Taylor Momsen Wasn’t Scary in 1997 [Video]

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Photo:  Lia Toby/WENN