Singer turned actress whose debut album spawned five hit singles, including the songs "Stone Cold Sober" and "New York." In 2016 she became a judge on The Voice UK and in 2019, she began starring as Bet Sykes in the Batman series Pennyworth.
She attended the Northern School of Contemporary Dance, working odd jobs to support herself.
She was in the British TV comedy Dogface.
She was raised by her mother after her parents divorced. She married chef Rian Haynes in 2005, but they divorced after less than a year. In December 2016, she welcomed a daughter with partner Leyman Lahcine. Their second daughter was born in February 2021.
She played the role of Sally in The Imaginarium of Doctor Parnassus alongside Heath Ledger.