Singing legend Sir Tom Jones initially struggled on The Voice UK as a coach, it has been claimed today.
The 71-year-old Welsh singer is one of four musical coaches on the new BBC One reality series, alongside relative youngsters Jessie J, Will.i.am and The Script star Danny O'Donoghue.
The Daily Mail reports that bosses were initially worried they had made a wrong decision in signing the chart topper after the first few audition shows were recorded.
"Tom has really had to work to adjust to the format in all honesty. He is a legend as a singer but is not used to this sort of role," an insider told the newspaper.
They continued: "It's been difficult for him because the three others on the panel are contemporaries of each other and are very familiar with current pop music.
"We're confident he'll get more comfortable as the weeks go on because otherwise the live shows could become very embarrassing."
But the source insisted that the show's coaches needed to appeal to everyone.
"For Tom it was more about adjusting to the new music genres," the insider went on. "All the coaches on the US show are current chart stars so having someone from a different musical generation is a real experiment. But it was important for the BBC to make clear The Voice is also for fans of Strictly Come Dancing, not just young people.'
The Voice UK will launch today at a press event in London, and will hit TV screens next month.