Sir Tom Jones, 84, makes worrying admission over singing voice as he makes stance clear on retirement plans

Sir Tom Jones, 84, has admitted he has "less control" over his voice now he's gotten older as he prepares to continue his current tour.

The singer heads to Spain later this month for a string of gigs as well as the Netherlands, Malta, Cyprus, Greece, Portugal, Germany, the USA and, of course, the UK later in the year.

The Sex Bomb hitmaker has performed for concertgoers for decades, achieving chart success as far back as the 1960s.

He's sold over 100 million records worldwide and remains a mainstay on British TV screens as part of the judging panel on ITV's The Voice.

And luckily for fans, it sounds like there's still plenty more Jones to come as he's claimed he'll continue to perform as long as his voice is "still working".

He confessed in a new interview: "Thank God my voice is still working. I mean, I can’t believe it.

Sir Tom Jones

"When I am singing, I am like, ‘How the hell is this coming out of me?’ If it was not there, I am sure I would be going, ‘Urgh, I don’t want to do so many shows,’ but I love it as it is still working. What could be better than that?"

Speaking to Yours magazine (via Express), Jones went on to open up on the differences he's noticed in his sound over the years.

"My voice is lower now. As we get older, our voices drop and we get more character in them," he admitted.

And this comes with a price as Jones said: "The older you get, the less control you have over your vocal cords. All you have got to do is push it harder… and I can still do that.

"Now we are of a certain age, you have to look at life in a different light. I am not worn down in any way.

"Being older I feel I have got a point to prove. I can still sing and I can prove it so here it is."

The 84-year-old has already been wowing audiences in the likes of Argentina, Mexico, Brazil and the UAE among others as part of his Ages and Stages World Tour.

And this isn't the first time this year he's spoken out about his voice while on the stage, admitting previously he was in "disbelief" it was still working.

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Jones celebrated turning 84 earlier this week, with celebratory messages flooding in for the singer on June 7.

To mark the occasion, the BBC aired a special episode of Later with Jools Hollands - something the pianist and musician revealed in a heartfelt post dedicated to his pal.

"Happy birthday this week to my dear old Friend @realsirtomjones," Holland penned on Instagram.

"To celebrate his birthday there is a Later special on at 8.30pm tonight and then Later… ep 4 is on 10.25pm all on @bbctwo then on @bbciplayer." (sic)

The day before his birthday, Jones paid his respects in Normandy to mark D-Day, performing during the UK national commemorative event.