Under the new name of GEM taken from the names of the bandmates Geri Horner, Emma Bunton and Melanie Brown, the members have come together once again to work on new material including the track Song for Her which has been leaked on YouTube, reports femalefirst.co.uk.
Song for Her is a chorus-heavy track about female empowerment, with the girls repeatedly singing in harmony:
This is a song for her,
You know you light it up,
You know who you are,
Stand up, stand up,
She's got that boom-boom pop,
That's something they can't stop,
She's got that song for her
Bunton, 40, insisted earlier this year that Song For Her, which has appeared on Facebook and YouTube, was 'not a single' and was instead the result of the girls just having fun in the studio.
The girls were originally tipped to reunite this year, which would have marked the release of their breakthrough hit Wannabe, but Mel B admitted they are still finalising the details of their comeback.