The 42-year-old shared a snap from the studio and her impatient fans were quick to tell her to hurry up and release the EP.
"Listening back. In the studio," Geri wrote.
One fan gushed: "Can't wait for it!!"
While another ordered: "Seriously Geri, stop posting these pictures in the studio and release this album already."
Alongside another picture of her singing, Geri wrote: "I'm in the studio. Recording last two songs. Feels pretty good."
It's been 10 years since Spice Girl Geri's last solo studio album Passion was released.
Following her departure from the band, Geri released three albums and nine singles, four of which went to number one in the UK.
It's estimated that Geri has sold over 12 million records worldwide.
Earlier this year Geri married Formula One boss Christian Horner during a romantic ceremony in Woburn, Bedfordshire.
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