What 1990's girl group was Australia's Got Talent fourth season judge Geri Halliwell a member of?
Australia's Got Talent (season 7):  Kyle Sandilands returned as a judge for his fourth season, and was joined by Dawn French, Timomatic and Geri Halliwell, as well as Julia Morris as the new host. Geri Halliwell:  Halliwell came to international prominence in the 1990s as Ginger Spice, a member of the successful girl group the Spice Girls; together they sold over 85 million records worldwide, making them the best selling girl group of all time.
Spice Girls