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Watch 'The Voice' coaches throw a slumber party in hilarious season 17 promo

They'll soon get serious about a new season of singers, but before that, Blake Shelton, Kelly Clarkson, John Legend and Gwen Stefani are getting silly.
"The Voice" slumber party
"The Voice" coaches enjoy a slumber party ahead of season 17.NBC
/ Source: TODAY

A brand-new season of "The Voice" is just weeks away, but fans don't have to wait for premiere night to kick off the fun.

And neither do the coaches!

A promo for season 17 proves that Blake Shelton, Kelly Clarkson, John Legend and Gwen Stefani got the party started already — the slumber party, that is.

We apologize, this video has expired.

The clip begins with the quartet enjoying a dinner party and musing about the upcoming season. But when Legend expresses regret that their evening has to come to an end, Stefani proposes a counter-plan.

"We don't really have to go," she says. "We could just hang out here all night."

And despite the fact that her beau, Shelton, mocks the idea — "Like a slumber party? What are we, in the fifth grade?!" — everyone immediately channels their inner fifth grader.

Kelly Clarkson and Gwen Stefani get into the sleepover spirit.NBC

And no one appears to love it more than the pillow-fight appreciating, manicure-getting country crooner himself!

Blake Shelton gets a ruby red mani during "The Voice" slumber party.NBC

The gang embraces every sleepover cliché in the promo, from manis and movies to gossip and even story time — courtesy of another familiar face.

Carson Daly sent the stars of "The Voice" off to dreamland in the new promo for season 17.NBC

"The Voice" host and TODAY co-host Carson Daly can be seen sending the gang off to dreamland with a sweet tale and a hilarious kicker.

Here's hoping they enjoyed the rest. A new season of "The Voice is just weeks away. NBC

"Sleep well, my angels," he says as he plants a smooch on Shelton's head. "We've got a big season ahead."

See that for yourself when "The Voice" returns to NBC on Monday, Sept. 23.