Ke$ha recently revealed that she was born with a tiny tail which was later chopped off. Ke$ha told 'Heat' magazine "I had a tail when I was born. It was a tiny tail, about a quarter of an inch, then they chopped it off and stole my tail. That was when I was little. I'm really sad about that story." This explains why she has such a hard time parting with anything, like making jewellery from teeth and drinking her own pee.