De-Lisser has been involved with the Voice from a very early stage, auditioning thousands of contestants and whittling them down to the core group who proceeded to the blind audition stage.
People with a musical talent, but who don't make it on to a talent show such as The Voice, will ask themselves how they can go about making a living out of it. De-Lisser says it's about looking at all the opportunities, not just focusing on how you can make it on to the biggest stages.
"You have to look at all the options. As a singer you can do session singing, you can teach, or you can get involved in function bands - they are not what they used to be and you make money through this," he says. "Many young musicians don't get that, they just want to be on the massive stage, but you have to hone your craft and develop as a musician and you have to work up a repertoire."
In music, as in any other business, networking is key. "You have to experience and get to know the whole industry, so you discover who to speak to and what events to attend to advance your career," says De-Lisser. "You have got to get out there singing and performing regularly, the final four were all out there singing and gigging. You have to get what I call gig fit"
Reality today is that you don't need a management company, a record label or an agent to star. It is possible for artists to record their music at home, get it mixed and mastered, share it through media channels and sell the albums online - essentially and run it as a little business. "All the social media channels, like Twitter and Facebook are brilliant and you have to put yourself out there, and keep going, he explains. "Some musicians produce their own music and sell singles and albums and people are buying them - with all the technology available now you can do that."
His tip to anyone out there with a musical talent is to keep and eye at what's in the charts, do a copy of whatever song is heading for number one and put it on your YouTube profile. "Once the track hits number one traffic to your site will rocket as people search for the song," he says.
Treating your musical career as a business means you can't ignore the commercial side. "It is important. Anyone trying this has to understand the figures and how to price yourself. Ask yourself how long you want to stay in the business, don't price yourself out of the market, charge a decent amount that you can live on and then gauge what people think before adjusting your price. You have to have a commercial sense," says De-Lisser.
The terms of the artists have changed massively too and De-Lisser says the reality that faced manufactured bands is no longer. "We're moving away from the manufactured thing, it is about talent and where you want to go and what you want to do. Find out where you want to go, management companies today ask what the artists want, so it is more on the terms of the talented artists," he explains. "Look at Adele, she stayed true to who she is, she won six Grammies and it is about staying true and believing what you want to do."
Even though De-Lisser is already scouting for talent for the next series of The Voice, he will be watching the final with a keen eye. But he won't say who might win. "I am so proud of all them, I've seen them form auditions right the way through, their progress has been incredible and some of them have had some great journeys," he says. "No matter who wins the final I will be a very proud man".