Mel C wants to write a tell-all Spice Girls book - in 40 years

Mel C wants to write an autobiography when she's 80.

The former Spice Girl plans to reveal the band's secrets in a tell-all book, but says she wants to wait until she's an "old woman" so she doesn't get into trouble with her former band mates - Geri Halliwell, Emma Bunton, Mel B and Victoria Beckham.