Her voice is a fine vehicle for her inventive, memorable melodies, even if some of the lyrics sung in her upper register got a bit lost amid her three-piece band's heavy beats and keyboard washes.

But there was no mistaking the hooks and here was a reminder that Blue has written some strong ones. The "I'll be home but I don't know when" section of First Week, which inspired one of several mass sing-alongs, seemed particularly enduring.

Blue has not entirely abandoned her folk roots and on a solo guitar rendition of Said Goodbye to Your Mother, the break-up of which she sang still seemed raw.

The solo section of this show was all the more affecting for its lack of pre-recorded tracks. The use of slabs of her songs' studio versions elsewhere rang a false note in an otherwise genuine, fully invested performance.

Not that this crowd cared, as Lady Powers, Blue's one true feminist anthem – "I won't be defined by your eyes" – brought the show to a euphoric uptempo close. The tossed roses and white ticker-tape cannons might have evoked a wedding, but it's clear this former The Voice contestant is confident in her own path.