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Billie Joe Armstrong joins "The Voice" as a mentor

Billie Joe Armstrong, right, sits with Christina Aguilera on July 25, 2012. AP/NBCUniversal

(CBS/AP) LOS ANGELES - "The Voice" is adding a high-powered rocker to its roster.

NBC said Thursday that Green Day vocalist and guitarist Billie Joe Armstrong has joined the talent contest as a mentor for Christina Aguilera's team this coming season.

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In a statement, Armstrong said he and his family are fans of the show.

"The Voice" has won over viewers because "it's not molding artists, it's just giving them a little bit of guidance and direction without giving them a complete makeover," he said.

Besides, Armstrong says, working with Aguilera is "a lot of fun." He started taping Wednesday on "The Voice," which has been in production for season three since June.

As the talent contest field grows more crowded, shows are competing for big-name music stars. "American Idol" is adding Mariah Carey as a judge for the show's 12th season, and "The X Factor" signed Britney Spears and Demi Lovato.

"The Voice" returns Sept. 10. That's good timing for Green Day: The band has three albums coming out in quick succession, with the first, "Uno!", to be released Sept. 25.

In addition to Aguilera, the show's coaches include Cee-Lo Green, Adam Levine and Blake Shelton. Carson Daly is the host.