'The Voice' Olympics Promo Features Surprise Appearance by Gold Medalist (Video)

The Voice returns for its third season on September 10, and to get everyone into the spirit of competition, NBC has released an Olympics-themed promo for the new season.

Coaches Christina Aguilera, Adam Levine, Blake Shelton and Cee Lo Green get out of their cushy, red rotating chairs for the clip, which features the four judges fighting in a hotel lobby.

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Levine and Shelton get involved in some hand-to-hand combat, while Green, looking fashionable in a bright-yellow ensemble, shows off his best karate chop.

The four coaches eventually make their way to a hotel room where a man is singing. That man turns out to be Bruce Jenner.

“Wow, it’s Bruce Jenner from The Kardashians,” says Levine.

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“I also won a gold medal. ’76. Montreal,” says the former Olympics track and field athlete.

The third season of The Voice will feature a collection of new aspiring singers looking for their big break, and also some new mentors to help them along the way. Green Day’s Billy Joe Armstrong, Rob Thomas, Mary J. Blige and Michael Buble have all been announced as mentors for the new season.

The third season of The Voice premieres Monday, Sept. 10, on NBC.

Watch the new promo for The Voice above.