KT Tunstall performing at the Nobel Peace Prize Concert. Oslo, Norway - 11.12.07

The 32-year-old musician is a big fan of the pop five-piece and is determined to quash rumours the Wannabe hitmakers mime their songs.

She writes on her Internet page: "The lovely Sporty Spice (Melanie Chisholm) asked if I'd like to go to one of their shows, and of course I said, 'Too right I do.'

"Sorry to disappoint any dissenters out there, but it was ace! It looked great and was such a laugh. The mics were definitely on people and the ladies were in tune. Fact.

"Scary (Melanie Brown) said one of the filthiest things on stage I've ever head. The girl is on fire."

But the Suddenly I See hitmaker insists there is a disadvantage to being invited to a sold-out Spice show: "I went half bloody deaf from the screaming - I had to get my left ear checked out for tinnitus. Rrrrawk and roll, eh?"

Source: WENN