U.S. TV station NBC confirmed in a statement on Friday (25Mar16) that the two women will join Adam Levine and Blake Shelton on season 11 of the talent show.

Current judges Christina Aguilera and Pharrell Williams will be leaving after the tenth series comes to an end.

"It's true! I am going to be the newest judge on Season 11 of The Voice," the Wrecking Ball hitmaker confirmed on Twitter. She added on Instagram, "Season 11 s**t is gonna go offffff (sic)! I can't wait!"

Miley is due to appear on the latest series as an adviser to Christina's team as the live knockout rounds of the singing competition begin on Monday (28Mar16).

Alicia, who previously served as a mentor to Pharrell's team back in 2014, is also due to join the judging line-up, her representative confirmed to Entertainment Tonight.

Pharrell retweeted Miley's' announcement, welcoming her to the show. "Congrats sis!" he wrote. "Welcome to the @NBCTheVoice family."

The Voice judging line-up has seen many famous faces fill the red chairs, including Gwen Stefani, Shakira, Usher and CeeLo Green. Gwen made her return to the singing competition earlier this month (Mar16) by serving as a mentor to boyfriend Blake's team in the battle rounds.

The country crooner said that it was an easy decision to get the former No Doubt frontwoman onboard to help his contestants. "You start thinking, 'Who are the ultimate artists out there that you can get to mentor your team?'" he said.

"You start thinking - you do - 'Wait a minute! This is perfect. And I actually know her. It'll be easy to call her.'"

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