The singer is currently receiving treatment for an eating disorder at a facility near Chicago, with her mom saying Ke$ha thought about killing herself over her issues.
She last tweeted on New Year’s Day, but on Tuesday, someone identifying him or herself as Ke$ha’s friend wrote from the pop star’s account.
She said, "This is Kesha's friend. She asked me to tweet an update for her because she doesn't have access to twitter right now. She says 'THANK YOU. SOOO MUCH. I'm overwhelmed to tears by all of the love, letters, and support!! I'll be back soon and better than ever. Ohhh and she can't believe Timber is still number one! "F*ck YEAH animals! PARTY ON!!!!' "