As details emerged, it sounds like the "Timber" singer was being put under a lot of pressure to lose weight, especially by her music producer, Dr. Luke.
According to a report by TMZ, the producer told her that she looked like a "f**king refrigerator" during a 2012 music video shoot.
The star's mom said it wasn't just the producer who was putting pressure on her, but he seems to be taking most of the heat...at least on Twitter.
Comments have ranged from simple anger, like this one, "Where is your support on Ke$ha getting into rehab
TMZ reports, however, that at least one Twitter user let their emotions escalate to the point where the LAPD had to get involved, specifically because of two tweets that were sent to the producer, which make violent threats against him and even go so far as to threaten his life.
Apparently, one of the tweets even gave out his phone number and address.