 Kesha uses a rap vocal delivery which was influenced by the Beastie Boys . She claims that the track 's creation would not have happened if it was not for their influence on her music . While the song was being crafted she took a different vocal approach to the song than in her earlier records , explaining that : " I ’ ve done the country , done the pop @-@ rock , done the super @-@ hard electro , ... I was like , whatever , throw some rap in there , why not ? " According to the sheet music published at Musicnotes.com by Kobalt Music Publishing , the song is set in common time with a moderate beat rate of 120 beats per minute . The song is written in the key of D minor . It has the sequence of B ♭ – C – Dm as its chord progression and Kesha 's vocals in the song span from the note of D3 to the note of D5 . Musically , the song has been compared to Lady Gaga 's debut single , " Just Dance " , for their similar composition and lyrical context and to Fergie for their similar rap style . 
