Ke$ha has checked into rehab to treat an eating disorder. The "Tik Tok" singer says in a statement provided by her spokesman Friday that she'll be unavailable for the next 30 days while she seeks treatment for an undisclosed eating disorder. The 26-year-old pop star stated she wants to "learn to love myself again, exactly as I am." No other details were provided. Ke$ha, whose real name is Kesha Rose Sebert, is the performer of such hits as "Crazy Love," ''Die Young" and "Timber" with Pitbull. She starred in the MTV reality series "My Crazy Beautiful Life."