Tulisa Contostavlos is best known for being one of the original members of U.K. urban pop/hip-hop act N-Dubz. Wildly popular, the group would regularly sell out arena tours and hit the upper reaches of the U.K. pop chart. Despite all their success, the group members decided to go on hiatus in 2011 -- the year Tulisa became a judge on the U.K. version of The X Factor for the series' eighth season. She proved popular and charismatic among viewers and mentored her act Little Mix to the winner's crown. In 2012, she released two singles off her debut album, The Female Boss. The singles "Young" and "Live It Up" reached number one and number 11, respectively, in the U.K. chart. ~ Aneet Nijjar