(LOS ANGELES) -- Ke$ha entered rehab January 3 to battle an eating disorder, and it appears the treatment was successful.
The singer tweeted that she's "happy to be back," using her newly-christened Twitter account, @Kesharose, to post the message. Her previous Twitter handle had been the less-than-positive "keshasuxx."
A rep for the singer confirms to ABC News Radio that Ke$ha has indeed left rehab.
"Happy to be back! Feeling healthy & working on tons of new music. I can't thank my fans enough for all the love & support u have given me," the singer tweeted. "life is beautiful. I'm so blessed to have u all." She also tweeted a string of emjois of hearts and rainbows.
When Ke$ha initially sought treatment, she said in a statement, "I'm a crusader for being yourself and loving yourself, but I've found it hard to practice...I'll be...seeking treatment for my eating disorder...to learn to love myself again, exactly as I am."
Later, it was reported that body-shaming by people involved in her career -- particularly her producer, Dr. Luke -- was partly responsible for Ke$ha's eating disorder. Luke has denied those accusations.
While she was in rehab, Ke$ha scored a #1 hit: "Timber," her collaboration with Pitbull.
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