Mogwai might have a 90 minute set still to play over in the Obelisk Arena, but from the moment that Brooklyn's Regina Spektor appears grinning broadly on the Uncut stage, it's clear who the night belongs to and who Latitude was most excited about seeing. She's utterly enchanting. Bashing out a drum rhythm with one hand and piano chords with the other, she sings her lilting pieces of nonsense with such verve that you feel like you're at a really excellent birthday party. We've never seen a crowd so happy. Nor a singer for that matter - good joy, great Regina.