Lack of rehearsal time together keeps We Three's music fresh and alive.
And they're hoping those qualities will carry them into the finals of Homai Te Paki Paki, a music talent quest show that screens on Maori TV.
We Three will perform live in the semifinals of Homai Te Paki Paki tomorrow night after winning their heat earlier this year.
The singing trio consists of Wanganui-based Ailsa Matoe, and her Raetihi-based sister and brother-in-law Mary and Peter Perkins.
"We only get to practise occasionally," Mrs Matoe told the Wanganui Chronicle.
"But it doesn't matter, we're family and we've been singing together forever. I think it helps that we don't practise together very much - it helps to keep the music fresh."
We Three has existed for about 10 years, but they have been singing together for family occasions for much longer than that, as they come from a very musical family.
"We've performed at the Wanganui Karaoke Club and sometimes we've had a few other gigs," Mrs Matoe said.
They were recommended to the producers of Homai Te Paki Paki by two other Wanganui musicians, Daniel Harding and Cilla Te Ua, and performed on the show in June.
"We were the oldest there, and it was pretty nerve-wracking, especially as you perform live.
"But everyone on the show was so friendly and they looked after us really well."
Mrs Matoe said nerves were likely to be felt tomorrow night as well, but she is confident the trio will do their best in the semifinal, singing a little-known Bee Gees song, In The Morning.
"We love what we do, and we're just happy to have got this far."
The group will have support from their family in the studio during the live performance. The top two acts from each semifinal will go on to perform in the grand final later this year.
Mrs Matoe said she wished to thank everyone who voted for the group during their last performance.
Homai Te Paki Paki screens at 8.30pm, tomorrow on Maori TV. You can vote for We Three during the show.