She’s back! Pop-star Ke$ha finished her short stint in rehab for her eating disorder and has arrived home. She was spotted arriving at LAX in an “Ima survivor” sweatshirt. Aside from joining the real world, she also changed her Twitter name just before sending out a tweet saying, “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.” Check the “We R Who We R” singer’s arrival flicks over in the gallery!