Geraldine Estelle Halliwell-Horner (née Halliwell; born 6 August 1972) is an English singer, songwriter, television personality, author, and actress. She rose to fame in the mid-1990s as a member of the pop group the Spice Girls, in which she was nicknamed Ginger Spice. With over 100 million records sold worldwide, the Spice Girls are the best-selling female group of all time. Their slogan "girl power" was most closely associated with Halliwell and her Union Jack dress from the 1997 Brit Awards also became an enduring symbol. Halliwell left the Spice Girls in 1998, citing exhaustion and creative differences, but rejoined when they reunited for a greatest hits album (2007) and two concert tours: the Return of the Spice Girls (2007–2008) and Spice World (2019).