The 'Spice Girls' in England today

The Spice Girls have reformed.The band announced they were reuniting today, six years after they finally split, for a world tour in December. They are also releasing a greatest hits album. Geri Halliwell, 34, insists the reunion is going to be like a "one nightstand", and says the girl group want to "celebrate the past" and are not getting back together for good. Geri, who left the band in 1998, told BANG Showbiz: "It's a bit like a one night stand - it's not forever."We want to celebrate the past, enjoy being together and say thank you to our fans."She added: "It feels like 'Charlie and the Chocolate Factory' and I've got the golden ticket! It's so exciting. It was like I got divorced and now I have fallen in love with my ex-husband again."Victoria, who has three sons with soccer ace David Beckham, insisted: "There is a big difference between celebrating the past and getting back together. We are here to do a tour and that's all."Our priority is our families. We are doing this for our kids so they can see what we do. We are going to have a huge crèche for all the children. I am so excited about this tour - I might get to be the cool one in the family for once!"The girl band also said they can't wait to don their famous old outfits again. Mel B revealed: "I will be wearing leopard skin and Geri will have her Union Jack dress on."Mel C added: "I want to wear my tracksuit again. I will be going down the market looking for a shell suit. Hats off to our characters."Victoria insists the band have still retained their old images and their style hasn't changed since they split in 2001. She said: "We didn't know what we would all be wearing, but we look the same as we used to. We still have the same images and they haven't really changed."Emma Bunton added: "It's just a grown-up version."The Spice Girls are set to kick off their 11-date world tour in Los Angeles, followed by shows in Las Vegas, New York City, Buenos Aires, London,Cologne, Madrid, Beijing and Sydney.