Kesha has entered the rehab for eating disorder Friday morning. "I'm a crusader for being yourself and loving yourself but I've found it hard to practice," Kesha said in a statement to People.

"I'll be unavailable for the next 30 days, seeking treatment for my eating disorder ... to learn to love myself again. Exactly as I am."

She is at Timberline Knolls near Chicago. It is the same place where Demi Lovato went for the eating disorder problems.

Ninemsn reported that Ke$ha blames Dr. Luke for her eating disorder. Sources close to Ke$ha claimed the ragging started after her 2011 "Get Sleazy" tour. Dr. Luke, a music producer, ragged her for gaining weight. He told the singing star she "looked like a f**king refrigerator." She was affected by the comment.

Celebrities Suffering From Eating Disorder

1. Kelly Clarkson: First winner of "American Idol" Kelly Clarkson got criticized for her weight. She later admitted that she suffered from eating disorder. "I thought...If I came back and I'm cuter and thinner...then I'll get the role," told Kelly to Cosmogirl.

2. Sharon Osbourne: She battled bulimia for 35 years.

3. Jessica Alba: She is known for her superhot figure. However, she mentioned that she was worried about her weight. She realized that she had eating disorder after her weight dropped below 100 pounds. She learned how to cook to stay slim and healthy.

4. Troian Bellisario: Recently, "Pretty Little Liars" Star Troian opened up about her eating disorder. "'I started self-harming when I was a junior," Troian told Seventeen. "I would withhold food or withhold going out with my friends, based on how well I did that day in school." "Being a teenager is chaotic because you're kind of coming into your own. I didn't know what was right and what was wrong, so I think I created this bizarre system of checks and balances to create order in my world. But it really backfired."

5. Christina Ricci: She battled anorexia and blamed the eating disorder on TV. "At the time that I was starting to diet and stuff, I saw this TV movie, and I thought, 'Ooh - anorexia. I could probably do that," Christina told The Guardian in 2004.