The 'For Once in my Life' singer - who is also a judge on 'America's Got Talent' - may be too busy to spend much time with her former bandmates Emma Bunton, Geri Halliwell, Mel C and Victoria Beckham, but says they are all still very close.
She said: ''We're all really good friends and supportive of what each other does. Emma's got a great radio show in the UK, Mel C just released another single, Victoria's got an amazing fashion line and Geri's in Australia doing 'Australia's Got Talent', so we're all over the place, but very connected still.''
Mel adds she would never rule out the Spice Girls getting back together again, although she admits her comments often send the rest of the group - who reformed to perform at the London Olympics Closing Ceremony in 2012 - into a panic.
Asked if they would reunite again, she told The Naked Truth with J.Son online radio show: ''You're asking the worst one because I'm always saying 'We're getting back together next week' or 'We're getting back together next month' then I have the other girls texting me saying 'We're doing what now?' But I would never say never, we managed to clear our diaries for the Olympics and we had two and a half weeks of rehearsal for that, to make sure we wouldn't fall off the cabs.''
An album re-release, a new song and a documentary mark the singer's legacy this year.
The actor plays the titular hero in the forthcoming adaptation.