Kesha Rose Sebert (born March 1, 1987), better known by her first name Kesha, is an American pop singer and songwriter. Her breakthrough came in early 2009 after appearing on Flo Rida's number one single "Right Round". Her debut single, "Tik Tok," was released in August 2009 to much commercial success. It reached number one in eleven countries and set the weekly records for the most digital downloads of a female artist and of the total Top 40 Mainstream airplay records in the US.