Tula Paulinea "Tulisa" Contostavlos (born 13 July 1988), often known mononymously as Tulisa, is an English singer-songwriter and actress. 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 formed in 2000 and together releasing three studio albums before announcing their hiatus in 2011. Contostavlos is currently a judge on the The X Factor and mentored the "Groups" category in her first year including Little Mix, the first ever group to win the competition to date. Contostavlos will release her debut solo album in the summer of 2012. On 16 March 2012 during a Twitter dispute with her cousin and bandmate Dappy Contostavlos announced that N-Dubz had in fact split up and were not taking a break as stated in 2011.