The Black Eyed Peas star has told TV bosses that he will not be returning for a fifth series when filming begins next month, reports Britain's Star on Sunday newspaper.

The show is already one judge down after it lost singer Rita Ora to rival reality show The X Factor, and a spokesman for The Voice has insisted line-up negotiations for the fifth series are still ongoing.

Jason Derulo is being tipped as the favourite to replace Will.i.am as he recently revealed "There's some talk about me doing The Voice. It's a cool show, there's interest from both parties, myself and them."

Kylie Minogue, who previously worked as a judge on The Voice last year (14), is rumoured to be returning, while music veteran Sir Tom Jones is expected to retain his place on the panel alongside Kaiser Chiefs frontman Ricky Wilson.

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Daily Mail: Kylie and Will.I.Am hint at leaving The Voice | Daily Mail Online