After months of speculation, the Spice Girls have reportedly finally sealed the deal regarding their reunion later this year.

According to the Mirror, details of the 25-date world tour and Greatest Hits album release will be officially confirmed next week but an inside source told the newspaper that the five women will each earn £10million from the “final goodbye“.

The source said: “This deal has taken years to sign off. But finally all of the girls are on board.”

“It’s going to be one of the most phenomenal pop events ever. No expense is being spared to make this an unrivalled spectacular.”

The five women will each have a private jet to take them between the concerts around the globe to enable their families and entourages to travel with them: “Things have changed a lot since the girls’ heyday. Back then they were all pretty much commitment-free.”

“But now all of them apart from [Melanie Chisholm] have kids and with that come nannies and other issues.”

“[Geri Halliwell] doesn’t want to be apart from daughter Bluebell for the tour - and the only reason [Victoria Beckham] has agreed is so that her sons can see what she used to do. That all needed to be taken into account.”

The concerts will take place from December until the end of January, starting in London: “The UK is the girls’ home so that’s where they’ll start. And the band still have a huge following in Japan so naturally they’ll be playing there.”

“But venues like Shanghai are on the list because they want to reach as many Spice fans around the globe as they can manage.”

“They feel they didn’t get to say goodbye properly when they split.”