Bic Runga is huge in her native New Zealand - although that isn't hard in a country of only four million people. But judging by this show, Runga could be huge here, too - and if justice hasn't yet abandoned Britain, she will be.

At 30 she has three fine records to her name, each packed with delicate songs that range wide in emotion and musical colour, all delivered by a stunning voice. She can knock an audience dead with her music, and if that doesn't work there's always her beauty.

Skipping onto stage in dainty shoes, a short brown silk puffball dress and an immaculate, tight bob haircut, she strapped on her acoustic guitar and sang.

The first five songs, a selection from all of her records, were just her, a guitar, a microphone and a packed auditorium (mostly New Zealanders) in hushed attention to the fine reinterpretations of what were band ensembles on record, but were stripped back here to their thin-skinned best. Switching her acoustic for an electric guitar, she tackled the fragile Bursting Through from her debut album, Drive - her fingers deftly spinning out fresh riffs and licks to send her guitar lines soaring almost as high and free as her voice.

Then she was joined by her band. While they tried hard to recreate the sound of the records, these musicians just didn't seem to be able to keep up with her or push the music where it wanted to go, and the exuberant Get Some Sleep fell flat when it should have fizzed. They warmed up, though, to execute a mesmeric If I Had You from her most recent release, Birds. But it was only when they left Runga solo again that she pulled the audience back to deliver the lyrical punches and melodic frisson of Sway, and, with charismatic unawareness, threw some goosebumps in with it, too.