Melanie C earned £2.8 million (NZ$5.5m) last year for the Spice Girls reunion.
The 46-year-old pop star raked in an eye-watering amount of cash thanks to the Spice World tour and her own solo shows, according to The Sun newspaper's Bizarre column, which cited new accounts for her touring company, Red Girl Media Ltd.
Melanie reunited with Emma Bunton, Mel B and Geri Horner for the money-spinning tour in 2019 but prior to that she admitted to rejecting a £2m (NZ$3.9m) offer to tour with the group.
Speaking in 2016, Melanie - who has daughter Scarlet, 11 - said: "Realistically, it would have been a couple of million pounds.