Kesha Rose Sebert (born March 1, 1987), better known by her first name Kesha (IPAc-enicon?k??? respellKESH?, stylized Ke$ha), is an American pop singer, rapper and songwriter. Her debut single, "Tik Tok (Tik Tok (song))", released in late 2009, reached number one in eleven countries and set the weekly records for digital downloads of a female artist and total Top 40 Mainstream airplay in the US. The song also became the first Billboard Hot 100 number one of the decade and the longest running number one debut single by a female artist since 1977. Her debut album, Animal (Animal (Kesha album)), was released in early 2010 and debuted at number one in the US.

At the age of eighteen, Kesha was signed to Dr. Lukes record label and publishing company. Although an active musician since 2005, singing background vocals and writing songs for other artists, her breakthrough only came in early 2009 after appearing on Flo Ridas number one single "Right Round". Before being brought to RCA Records, she had amassed an extensive social media following that was factored in for the promotion of her debut single and album. She has been noted for her party girl image and behavior; while she and her music have been dismissed early on as lightweight, calculating and crude.