According to the whole internet right now, the Spice Girls are 95 certain actually translates as "this is in NO WAY certain at all" the speculation is mounting - The Mirror has quoted a source explaining how close the group are to getting back together:
"Victoria is in London until the end of the Games and David's exclusion from the football team means she has time to reunite with the Spice Girls. Talks are back in full swing and the balance of power rests with Mel C. Everyone is hopeful she will agree to perform."
This is also a good time to have a think about how appropriate the Spice Girls reunion would actually be for the Olympics. For example, does a Union flag dress, a band member named Sporty and a penchant for trainers you could barely walk in let alone do an activity really make for an iconic representation of Olympic-realted glory?
Probably not, so it's just as well they have the whole "global success, iconic imagery, poptastic back catalogue and multi-million dollar career" thing going for them as well.
P.S. Watching this was our first reaction when we read the news...