Kesha - formerly Ke$ha - is the singer and songwriter behind such hits as "Tik Tok," "We R Who We R" and "Timber." Her debut album, Animal, was released in 2010 and became a success off of the strength of the lead single "Tik Tok." Animal was re-released as a deluxe edition, named Cannibal, later that year and scored another hit single with "Blow." Kesha's second album, Warrior, came out in 2012. She currently serves as an expert on the ABC singing competition Rising Star.