The 'I Can Make You Feel Good' singer, who once beat Peter Andre and Gary Barlow to a Smash Hits 'Best Singer' trophy, takes a risk on the BBC reality show and performs for will.i.am, Jessie J, Danny O'Donoghue and Sir Tom Jones.
Kavana was signed by Take That's manager in the '90s, but his attempts to break into acting in America failed, and the singer confesses that he has had some "dark lows" in his years out of the spotlight.
Another singer hoping to leave his mark is Ash Morgan from Wales, who hopes that the blind audition process will offer him a chance to be judged on his voice alone and not his image.
24-year-old Essex singer Leanne Jarvis wants the chance to make a career for herself after being forced to move back in with her mum in a small flat after years of performing in tribute acts and in Majorca.
Meanwhile, blind singer Andrea Begley, who has suffered from glaucoma, brings a new twist to the series. Begley can't see whether the coaches have turned for her as she sings for her place in the competition.
"It's the biggest challenge I've ever put myself through," says Begley. "I hope the blind audition will put me on a level playing field."
Other hopefuls in show one include Salford bad boy Mike Ward, Katie Benbow - who is performing for her sick gran and late granddad - and will.i.am lookalike Matt Henry.
will.i.am is so amazed by Henry's looks that he even jokes after his audition that they may have the same father.
The Voice UK returns on Saturday (March 30) at 7pm on BBC One.
[The Voice series two, episode one - pictures]