Tula Paulinea Contostavlos (born 13 July 1988) is an English singer-songwriter and actress who performs under the name of Tulisa. Her father is Greek; her mother is Irish. She is best known for being a member of the Camden-based hip hop group N-Dubz. She was in the band with her cousin Dappy and their friend Fazer. Contostavlos was a judge on the eighth series of The X Factor. She mentored the "Groups" category. They included Little Mix, the first group to win the competition.

As a recording artist, Contostavlos has recorded three studio albums with N-Dubz, Uncle B (2008), Against All Odds (2009) and Love.Live.Life (2010). In 2011, she started work on a solo album. In 2012 it was released. The Female Boss got a lot of bad reviews and didn't chart well. Three singles were released from the album. The first single, "Young", entered the UK Singles Chart at number one.