Lorde, Neil Finn and other music stars put on performance at Cyclone Gabrielle relief concert in Christchurch

New Zealand musicians like Lorde and Neil Finn volunteered their voices in Christchurch on Friday night to fundraise for communities affected by Cyclone Gabrielle.

Many performers were already in the Garden City for the Electric Avenue music festival, but they decided to put on an extra performance to help out.

Cantabrians are coming together in another region's time of need.

"People in Christchurch, they know what it's like to go through something really difficult like this," said Red Cross director of philanthropy Jasmine Edwards.

Tickets for the fundraising concert sold out in six hours, and the event was organised in just over a week. $200,000 from the concert is going directly to the Red Cross New Zealand Disaster Fund.

"It goes towards emergency response and recovery and preparedness," Edwards said.

"It will make an absolutely immense difference, our main focus right now is supporting the immediate needs but of course Red Cross is there for the long run as well."

The power of music had people digging deep in their pockets and artists were only too happy to put their hands up to help.

"This is what we know how to do and this is us giving back to the people alright," said L.A.B. singer Joel Shadbolt.

"All of NZ gave so much to us 12 years ago and it's so amazing to be able to give back to them this week," added artist Emma Dilemma.

Coming together for communities who did the same for Canterbury 12 years ago.