Victoria Beckham has revealed that she nearly backed out of the Olympics closing ceremony performance due to nerves.

The Spice Girls reunited for their first performance in four years in front of a worldwide audience, a prospect that was daunting for the singer-turned-fashion designer.

Beckham had to be persuaded by bandmate Emma Bunton to go out on the stage.

She said on Bunton's Heart FM radio show: "I was in the taxi with Emma before we started and I nearly just got out of the car.

"I was so nervous. I felt sick and Emma was so amazing. Honestly, that's how you know a real friend. If it wasn't for her, I would not have been out there."

Beckham went on to thank the "amazing" Spice Girls fans, and dedicated the closing ceremony performance to them.