I was there and can confirm it was the best part of the whole show. A genuine shock that everyone seemed to delight in.
Otherwise it was probably the most padded gig I have ever been to. After 30 minutes on stage they ran off and an MC had the crowd singing a minute of random garage classics.
Su-Elise honestly did nothing, Sabrina did all the singing and both of them visibly winced at Alesha’s cheeky Britain’s Got Talent asides.
They saved B With Me, All I Want and Scandalous for the very end, and we left before Scandalous because to be honest the impression I was left with at this point was that once you’ve heard one Mis-teeq song you’ve heard them all.