The original coaches of the British format will be accompanied by Oscar-winning star Jennifer Hudson and Bush frontman Gavin Rossdale when the search for the next singing sensation moves to its new home on ITV.
Sir Tom's surprise return comes after he was unceremoniously dumped from the judging panel when the show was a part of the BBC last year.
Sir Tom Jones will return as judge on the new judging panel of The Voice UK
Of his return, the 76-year-old said: "I'm looking forward to returning to my big red chair on The Voice UK. I had some great times on the show and I can't wait to again discover and help some brand new talent. And of course be back with my pal will.i.am."
The Welshman has had huge success in a career spanning six decades, selling more than 100 million records and clocking up 36 Top 40 hits in the UK and 19 in the US including It’s Not Unusual, Delilah and Green Green Grass of Home.
Meanwhile, British rocker Gavin has racked up huge success on both sides of the Atlantic as lead vocalist, guitarist and main songwriter with his band Bush and as a solo artist, selling close to 20 million records in the US alone.
Bush frontman Gavin Rossdale has signed up for the latest series, which will air on ITV next year
He has previously appeared on the US version of The Voice as a guest mentor in 2014.
"I am so thrilled to be joining The Voice UK," he said of his new venture. "I have always been extremely proud to fly the flag for British rock music and I can’t wait to join this incredible panel and help discover some new talent."
Jennifer is a Grammy-winning recording artist, Oscar and Bafta-winning actress and Broadway star who has achieved global success since first finding fame on the third season of American Idol.
Oscar-winning star Jennifer Hudson will also be on the judging panel
"I couldn't be more excited to join the amazing panel of coaches on The Voice UK," she said in a statement. "The UK has always been so supportive of me since the beginning of my career so I’m really looking forward to sharing my point of view with the contestants and especially Team JHUD.
"Discovering new artists has always been important to me and the UK has no shortage of talent, so I can only imagine what this experience will be like for everyone involved. I can’t wait to get going and start developing each individual’s own sound!"
The Voice UK will be presented by Emma Willis and will air on ITV early next year.