The Timber sing, who was admitted for treatment for anorexia and bulimia in January, tweeted that she is now feeling better and ready to get back in the studio.
"Happy to be back!" She wrote. "Feeling healthy and working on tons of new music 🐱 I can't thank my fans enough for all the love and support you have given me ❤️️."
"Life is beautiful," she added an hour later. "I'm so blessed to have you all ❤️️."
On Thursday morning Ke$ha, whose real name is Kesha Rose Sebert, was seen arriving back in Los Angeles following her treatment. The 27-year-old defiantly sported a jumper bearing the phrase 'I'm A Survivor', along with a pair of ripped black jeans and Converse shoes.
The LA-born star was admitted to rehab near Chicago, saying "I need to learn to love myself again. Exactly as I am."
During her time at Timberline Knolls Ke$ha kept her fans updated on her progress.
The TiK ToK singer enlisted the help of a friend to tweet on her behalf.
"This is Kesha's friend," she wrote. "She asked me to tweet an update for her because she doesn't have access to Twitter right now."
"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."
"Hey It's Kesha from treatment," read a later post. "I just wanted to say that this is really hard and necessary work. I'm grateful for all the love and support I couldn't do this without you."