Sir Tom Jones has reportedly warned that The Voice could struggle to survive if Kylie Minogue quits.
The pop princess's future on the singing contest is uncertain, after she said that her tour could rule her out of the next series.
Her fellow coach Sir Tom has now insisted the programme would suffer without Kylie, who has boosted the ratings since she joined the line-up, reported the Daily Star.
He said: "It's working now and everybody seems to like the line-up. So why spoil it, why change it if it's working?
"You don't know what it would be like without Kylie - I don't know if it would be as good without her. She has been herself, which is very important.
"At the end of the day it's the viewers and ratings that count. We can only do what we do. It's the same when you make a record. You do the best you can but it's down to the public. You might record something and love it. But if people don't like it, you have to think again."
He urged show bosses to do "whatever it takes" to secure Kylie for 2015.
The Star also claimed that coach Will.i.am has revealed he wouldn't want to go on without the Aussie singer, with the star quoted as saying: "If she's leaving, I'm leaving."
He said: "To be honest, I thought this year would be the last series. I didn't think it would be good to have a fourth year. But having Kylie with us has meant this has been really good and made me want to carry on.
"It would be best for the show to come back with her."
However, a spokeswoman for the talent show has said it is "too early to speculate" about Kylie's future on the series and that discussions were "ongoing".
She said: "Kylie is a fantastic addition to the coaching line up. We are aware of Kylie's touring commitments and are looking to accommodate them, so that if the series is re-commissioned she could return to her coaching role. Discussions are still ongoing and it's too early to speculate as we've not finished this series yet."