Now, for the first time, he's an artist mentor with Nga Rangatahi Toa, a creative arts initiative which works with teenagers excluded from school. Kora says it's the sort of work he cancels other gigs for. He's one of 10 artist mentors for Nga Rangatahi Toa's Manawa Ora programme.
Held annually, Manawa Ora pairs visual and performing artists with young people to produce their own work - maybe a rap or a spoken word poem - for public performance.
Theatre-maker Aroha White directs this year's programme, called Manawa Ora: Roses in Concrete; the title a nod toward lyrics by American rapper Tupac Shakur, gunned down in 1996. White likens herself to a "patchwork mistress" pulling various threads together.
"There is so much talent in, I think, all of our kids, beyond those we see through the door - all of the kids we see in Aotearoa - and what we do is offer an opportunity for that talent to be nurtured and encouraged. It can be the difference between an individual having an idea that maybe they could be good at something to understanding that they are ... "
Kora is working with a young rapper and says he'll stand by her, offering support and advice as she crafts her own rap.
"It's a work in progress like any other and even when you perform it in a show, there may be more stuff there. I am going to just follow her, she will be teacher for this."
Lowdown
What: Manawa Ora
Where and when: Herald Theatre, October 18-21