The teenager, who released her debut album Sticks + Stones last year, is reportedly acting worse than ever with her team complaining to record label boss Simon Cowell.
"Cher's behaviour just seems to be getting worse," a spy in Cher's camp blabs to Reveal magazine. "She's becoming ridiculous, demanding and behaving worse than a pop star who's been in the business for 10 years"
Cher, who is now back in the studio and working on her second album, had to be talked into taking part a recent magazine photo shoot after throwing a tantrum in the studio.
The insider continues: "She expects everyone to be at her beck and call. If he her hair or make-up isn't exactly how she wants it to be, she'll flip out.
"The same goes for her outfits. She wants them her way, or no way."
And the source added: "Her manager stepped in and told her she needs to get a grip."