The group last appeared together during the London Olympics closing ceremony three years ago, but this time round Victoria Beckham won't be part of the supposed reunion as she's too busy, according to The Sun.
However, both Mel C and Emma Bunton have appeared to deny the rumours, as they both woke up oblivious to the news. But they might just be joshing with us...
Woke up this morning wondering whether I need to start practising my backflips???!!!
— Melanie C (@MelanieCmusic) August 7, 2015
Do I need to put my pigtails in?!?!? https://t.co/TfWZQL9ux2
— Emma Bunton (@EmmaBunton) August 7, 2015
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Bunton later spoke about the apparent reunion on her radio show on Heart, saying: "If anything happens and it's concrete, and we decide on something, I will let you know, but nothing's happening at the moment."
Mel B has apparently been the driving force behind the proposal and has met with Mel C, Geri Halliwell and Bunton to discuss the plans.
It's thought that negotiations with tour promoters will start soon in preparation for a massive international tour next year.
The last Spice Girls tour happened back in 2007 and generated £107 million from ticket sales and merchandise.
The girls have been spotted hanging out a few times this year, meeting up at David Beckham's 40th birthday party in May and at the Isle of Wight Festival in June.
Mel B recently admitted to Jimmy Fallon on The Tonight Show that it's in her plans "to do something to celebrate [the anniversary] next year".
Photo gallery - the Spice Girls through the years:
Music: Spice Girls through the years
