WATCH: The Spice Girls have renamed themselves and say the reunion IS happening
They'll be back for a big party.
The Spice Girls will be back but under a different name.
Three of the girls announced the reunion in a video uploaded to YouTube earlier today (8th July).
Geri Horner (nee Halliwell), Emma Bunton and Melanie C thanked their fans for standing by them over the past 20 years saying, 'we have the best friends in the whole entire world'.
Although the video doesn't mention the caption 'GEM', it appears to relate to their first name initials and almost certainly their new moniker.
In the straight to camera video the Geri, Emma and Mel B announce they will be back for a big party and everyone will be invited.
Geri says, 'you've stood by us for 20 years.'
Mel B continues, 'and we want to celebrate and have a party!'
There is no mention in the video of the remaining members of the group taking part, however Victoria Beckham has previously said that she would be up for a reunion.
Today, the 20th anniversary of 'Wannabe', Mel C has responded to a tweet saying how fun it would be if 'Wannabe' was number one.
Mel B has always wanted a 20th anniversary reunion, talking to Jimmy Fallon last year she said, "I want us to get back together, I think we should, it's been 20 years, it's about time."
The last time the five girls were reunited was for the 2012 London Olympics where they performed 'Wannabe' and 'Spice Up Your Life'.
Spice Girls at the 2012 London Olympics | © PA Images