The Spice Girls have added two more UK dates to their worldwide reunion tour, which kicks off in Canada in December.
The girls' first hit was Wannabe in 1996
The new dates at London's 02 Arena take place on January 15-16, with tickets going on sale at 1000 BST on 6 October.
The girl band will also play the O2 Arena on 15-16 and 18 December, and 2-4, 6, 8-9 and 11-13 January.
The Spice Girls have also announced they will be adding more US dates shortly after shows in San Jose, Los Angeles and Las Vegas sold out.
The group's greatest hits album will be released on 12 November.
The full line-up has not performed on stage since Geri Halliwell left in May 1998.
'Posh Spice' is known for her love of fashion
The reunion concerts have been put together by Simon Fuller, whose 19 company was behind the group's global success more than a decade ago.
The group notched up a string of hits - including Wannabe and 2 Become 1 - and capitalised on their fame with a string of sponsorship deals.
Emma Bunton, Melanie Brown, Melanie Chisholm, Victoria Adams and Geri Halliwell quickly became household names - although they were better known as Baby, Scary, Sporty, Posh and Ginger.
They sold more than 55 million records around the world, and even starred in a film, Spice World.
Halliwell quit in 1998 citing "differences", leaving the band to complete a sold-out world tour as a foursome.
Since 2001 each member has since pursued solo careers with varying degrees of success, while Posh Spice has become better known as fashion fan Victoria Beckham.