KT Tunstall brought out a huge 90s star during her performance in Glasgow last week. 

The 'Suddenly I See singer', who played the Hydro on Friday, brought out Spice Girls' very own Melanie C.

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Attendees of the show took to social media to share the surprise performance, which sees the pair singing a rendition of the Spice Girls' hit 'Stop'. 

Taking to Twitter, one attendee wrote: "KT Tunstall and Melanie C having fun on the Glasgow stage last night."

While another tweeted: "Chefs Kiss" along with a video. 

The show was part of Tunstall's UK and European Tour, in which she also visited the likes of London. 

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The 47-year-old is set to play Dublin in July as part of the tour. 

You can find tickets HERE