Ke$ha Enters Rehab: Did Producer 'Dr. Luke' Contribute to Her Eating Disorder?

Since Ke$ha entered rehab for eating disorders on Friday, more information about her struggle with her weight has been revealed."It was kind of out of the blue," a friend of the "Timber" singer tells PEOPLE. "She's just as sensitive about her weight as anyone is, but not constantly talking about it."When the pal broached the subject of her recent weight loss, Ke$ha, 26, simply shrugged it off. "She was like, 'I'm dancing constantly on tour and lost a little weight,' " the source adds.Another source says the music industry is responsible for Ke$ha's negative body image. "Being in this industry hasn't helped her issues, it's made them worse. But it's also finally made her deal with them properly," the source says.Others suggest cruel remarks from her longtime producer Lukasz Sebastian "Dr. Luke" Gottwald may have contributed to Ke$ha's insecurities."He has been verbally abusive to her and insults her and the way she looks, saying she's not pretty enough or skinny enough," an insider says. "The abuse ultimately led Ke$ha to a bad place." (A rep for Dr. Luke refused to comment.)Fans also appear to be upset with the producer, and have come together to petition that Ke$ha emancipate herself from Dr. Luke and take back creative control of her music.
In October, the singer told Rolling Stone that she'd like her sound to evolve."I'd like to show the world other sides of my personality," she said. "I don't want to just continue putting out the same song and becoming a parody of myself. I have so much more to offer."Ke$ha will remain in treatment for her disorders for 30 days, and sources close to her say she'll be able to conquer her eating disorders when she's finished.
"She thinks this is important to get a handle on, and it's great she's taking the initiative before it becomes something more serious," a friend says, while another adds, "She's a strong woman. She'll put in the work and get over this."