There's huge appetite for 90s' nostalgia right now, as shown by popular Facebook pages, "The lost nightlife of inner-city Auckland" and "Auckland Nightlife Year 2000+" - but this is a first for a mainstream radio station.
"What was going on in the world, even a couple of decades ago - which doesn't seem that long ago - things must have been a whole lot simpler in the world than what they are right now," Nathan said. "And that's what the detox is helping me get to as well, simplifying things.
Nathan grew up listening to R'n'B and hip-hop and says the nostalgic connections people are making through the old-school Facebook pages are about reflecting on good times.
"The great thing about playing those hits is that we'll immediately transport our listeners back to those moments in time, those amazing nights with friends, having an awesome time and making people feel good," he says.
"There's a bit of tough stuff going on in the world right now. Flava and its old-school sound will definitely give them a break from all of that."