Jones: No sure hits, even for me
Sir Tom Jones has admitted that even after more than five decades in music, he still can't predict which of his songs will become hits.
The Voice mentor was speaking at the launch of the competition's third series, discussing the reasons why winners of the show's past seasons had failed to go on to become big stars.
He said: "There's no guarantee. Television's one thing and you come on there so people can see and hear you, but then getting a hit record is another thing again and that is an ongoing thing.
"That is still going on with me - as long as I've been in the business I still don't have the secret of, 'This will be a hit if I record it'. You have faith in the song and you do the best that you can with it. Hopefully the public, because they're the ones that make the decision, will like it.
"So there's no guarantees, you see, that even if you've actually won The Voice for instance, that you're going to get a hit record. You don't know that."
Sir Tom won the first series with his contestant Leanne Mitchell, but she sold just 895 copies of her album in the first week of its release.
But the It's Not Unusual singer said he was looking forward to being back on the BBC singing competition's panel of coaches.
He said: "As far as I'm concerned, the more I do this, the easier it becomes, the more natural it feels.
"At first it was real brand new for me. You don't know whether you're talking too much, but as time goes on you get more comfortable and more confident."
The Voice returns to BBC One on January 11.