Sir Tom Jones has been told he has to liven up on The Voice mentor panel.
Producers were left exasperated on Saturday March 22, which marked the first live show of the series, as they deemed the music legend too dull as he gave feedback to the budding singers who performed live for the first time.
An audience source told The Sun newspaper: "While the other coaches were giving it everything they had, Tom seemed to be reverting to stock answers.
"He called everyone 'great' and his responses were flat and awkward -- plus he gave Emma Willis a hard task quizzing him."
It's thought producers were forced to tell Tom to be more animated while they aired pre-recorded footage and at one point, they waved their arms "frantically" as he spoke to try and get him to be more enthusiastic.
However, it seems their efforts were futile.
The source added: "Unfortunately for them, it wasn't having much of an effect."
Meanwhile, BBC insiders insisted Tom, 73, was being briefed in order to ensure the show didn't run over its time slot.
Four singers were axed in Saturday's live quarter final, including Iesher Haughton from will.i.am's team, Georgia Harrup from Tom's team, Ricky Wilson's act Emily Adams, and Kylie Minogue's artist Rachael O'Connor.
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