LEMONT – TMZ is reporting pop star Ke$ha has checked in to a rehabilitation program at Lemont's Timberline Knolls.
The website says the singer was admitted Friday morning to treat an eating disorder.
Timberline Knolls, 40 Timberline Drive, is a residential treatment center for girls and women struggling with alcoholism, drug addiction and other disorders.
In November 2010, the rehab facility treated another pop star, Demi Lovato.