"Tik Tok" is Kesha's debut single, released on August 7, 2009 as the lead track from her first studio album, Animal. The opening line of the song came from an experience where Kesha woke up surrounded by beautiful women, to which she imagined Diddy being in a similar scenario. The experience triggered the writing of the song which she later brought to her producer, Dr. Luke, who was then contacted by Diddy in hopes of a collaboration; he came to the studio the same day and recorded his lines and the song was completed. According to Kesha the song's lyrics are representative of her and based on her life; the song has a carefree message and talks about not letting anything bring you down. The song is an electropop song with dance-pop elements that uses a minimalist video-game beat interspersed with handclaps and synths. The song reached no.1 in the United States, Germany, France, Australia, Canada, Switzerland, Austria, Belgium, Norway, and New Zealand.