Kevin was crowned The Voice 2016 winner at the weekend and released a single - All You Good Friends - straight after.
Early signs are good with the song currently Number 2 on iTunes.
But Kevin is being realistic about the future, despite signing a record deal with Universal Music.
"You know there are no guarantees," said Kevin. “You have to work hard to try and make it work. Nobody I met during my time on The Voice wanted to be famous – they did it because they love singing.
“It’s always going to be a gamble at the end of the day whether it works out or not.”
Meanwhile Boy George also warned that the success of The Voice acts would probably be out of their hands.
He said: “Sometimes it’s about being in the right place at the right time with the right haircut or the right hat on or the right song. It can be so many factors.
“At the end of the day, what sells records is radio play. The difference between a hit and non-hit is repetition.
“If you play something over and over, people are going to buy it.”
Speaking to the Daily Star on Sunday newspaper, George went on to rave about all of the show's contestants: “I think the quality of singers this series has been amazing. There were so many great voices.
"The show is about the future of their career. I just hope everyone in the show goes on. I just wish them all luck.”
You can buy or stream Kevin's winner's song NOW.