The Spice Girls are reportedly getting ready to reform.

The 90s group, who trail blazed the way for future girl bands, are reportedly going to embark on a world tour next year.

Fans of Geri Halliwell, Emma Bunton, Mel B and Mel C, aka Ginger, Baby, Scary and Sporty, will mark 20 years since the release of hit single Wannabe next year with a mammoth tour, reports British newspaper The Sun.

But the band's most famous alumni, Victoria Posh Spice Beckham, will allegedly be absent from the line up, as she's too busy with her fashion empire.

“There is a huge demand for the Spice Girls to get back together, especially with the nostalgia around the two-decade anniversary of their first release next summer," a source commented.

“Mel B flew into London last month to secretly agree the plan with the other three girls. They should each make more than ten million pounds from this.”

The band previously reformed for the London 2012 Olympic games, sending fans into a frenzy. They also briefly hit the road again in 2007 and 2008 for a tour, taking in dates across America, Canada and Europe. Both times Victoria was present.

"Victoria wishes the girls the best of luck. She knows the reunion is on but has declined to be involved.

“She is far too busy running her fashion brand and looking after her family to get back on a stage," the insider claimed. “She also feels that they left the stage on an amazing high with their Olympics performance and worries a reunion could tarnish their legacy.”