Spice Girl members Victoria Beckham, (L) Mel C, (2nd L) Geri Halliwell, (3rd L) Emma Bunton (2nd R) and Mel B (R) pose for photographs before a press conference at the O2 Dome in east London, June 2007.[Agencies]

Tickets for the Spice Girls' comeback concert in London sold out in just 38 seconds, the show's organisers announced on Monday.

Demand was so overwhelming -- more than one million people in Britain registered for the sole London show -- that organisers added three more London dates to the tour.

The five original Spice Girls -- Scary, Sporty, Ginger, Posh and Baby -- will kick off their worldwide reunion tour on December 2 in Vancouver, their first since Geri Halliwell quit in May 1998, with a December 15 concert scheduled at London's O2 arena.

Organisers added London concerts on December 16 and 18 and January 2 to the tour.

The group, made up of Halliwell, Victoria Beckham, Emma Bunton, Melanie Brown and Melanie Chisholm, will also perform in San Jose, Los Angeles, Las Vegas, New York, Cologne, Madrid, Shanghai, Beijing, Hong Kong, Sydney and Cape Town before ending at Buenos Aires on January 24, 2008

The Spice Girls sold over 50 million records worldwide and scored nine British number one singles, including "Wannabe" and "Spice Up Your Life".

They announced they were reforming for a comeback tour in June but have denied the move is financially motivated.