Kesha Rose Sebert (born March 1, 1987), better known by her first name Kesha (stylized Ke$ha), is an American pop singer, rapper and songwriter. Her debut single, Tik Tok, 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. By reaching the top in 2010, the song also became the first Billboard Hot number one of the decade and the longest running number one debut single by a female artist since 1977.
At the age of eighteen, Kesha was signed to Dr.Luke's 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 Rida's 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. Her debut album, Animal, was released in early 2010 and debuted at number one in the US.