And Sporty Spice has now said the Wannabe stars are still waiting to be asked to appear at Glastonbury, but if they were she is sure Posh would be on board.
Mel C told the Reign with Josh Smith podcast: "I don't think we've been asked in all honesty, we haven't been asked to do it, but I do believe it could be the thing that would see all five girls on stage. So should we start a petition?"
Scary Spice announced on stage at their final London show that the band would be taking the tour to Australia the following year.
But the next morning she backtracked, telling 2DayFM Breakfast with Grant, Ed & Ash: “So I announced it on stage, yes, without everybody else signing off 100%.
“I figured if I put it out there then maybe it’s going to happen because I’ve been putting it out there for seven years. London did actually happen after seven years so I figured, Australia in February sounds pretty good to me.”
This year has seen the Spice Girls celebrate the 25th anniversary of their debut album Spice by releasing a new limited double-disc CD.
Earlier in 2021 the band celebrated the 25th anniversary of their debut single Wannabe with an EP of a previously unreleased track Feed Your Love, which will also feature on the new album's CD edition.
The also released a Wannabe Pride T-shirt, designed by Beckham.
There has been much speculation that the Spice Girls would reunite in 2021 to mark the 25th anniversary of the release of Wannabe.
Watch: Mel C says the Spice Girls are trying to persuade Victoria Beckham to reunite with them