Former Spice Girl Geri Halliwell has given an impromptu musical performance at a pub.

Strutting into a traditional public house, Halliwell reverted back to her Ginger Spice persona and belted out the chorus to the Spice Girl’s 1996 smash ‘Say You’ll Be There.’ Her unsuspecting audience carried on drinking as the playful Spice Girl carried on singing.

Geri later posted a video of the incident on YouTube (see video below).

At the end of her musical outburst the ex-pop star turned to the camera and declared: "I've done it. Melanie, it's your turn."

Spice Girl pal Mel B tweeted about the footage saying: “@GeriHalliwell just saw your video, only ginger spice could do this. And that’s why I love you!!! Xxxxx."

Halliwell’s prank appears to be the latest in a line of dares Mel C, Mel B, and Geri Halliwell have been exchanging over Twitter. 

Watch Geri Halliwell sing 'Say You'll Be There' at the pub and the Spice Girls legendary video, below: