Tula Paulinea "Tulisa" Contostavlos (Born 13 July 1988) is an English singer-songwriter.
She is best known for being a member of the now defunct Camden-based hip hop group N-Dubz, with her cousin Dappy and their friend Fazer. N-Dubz formed in 2000 and released three studio albums before announcing their indefinite hiatus in 2011.
During 2011 to 2012, she participated as a judge on the The X Factor. She mentored the "Groups" category in her first year, including Little Mix, the first ever group to win the competition. On 16 March 2012, during a Twitter dispute with Dappy, Contostavlos announced that N-Dubz had split up, and were not taking a break as stated in 2011. Contostavlos released her debut solo album, The Female Boss, on 26 November 2012 which received negative feedback and poor first-week sales.