Spice Girl Geri Halliwell turned up late to launch her book about an adventurous schoolgirl, because she was busy having an adventure of her own!
The pop star was trapped for an hour in a lift at a shopping centre in Essex, after it broke down.
Geri had to be rescued by firefighters before she could meet her waiting fans and sign copies of Ugenia Lavender.
The story's about a red-headed schoolgirl who likes mysteries and adventures.
Firefighter Dan Hyatt said: "Geri thanked us all for our help and was a really nice lady.
"There were loads of fans waiting for her so we were glad that we were able to get her out quickly so she could go and meet them."