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11/21/2013 09:00 am ET

'Parks And Rec' First Look: Leslie & Jamm Sing 'Summer Nights'

You haven't lived until you've seen Leslie Knope (Amy Poehler) and Councilman Jamm (Jon Glaser) sing "Summer Nights" from "Grease."

During tonight's (Thursday, Nov. 21) back-to-back "Parks and Rec" episodes, the two enemies unite at karaoke to take on the classic duet. In the episode, which airs at 8:30 p.m. EST, Leslie and Jamm go toe-to-toe in a marathon negotiating session. Meanwhile, Ben gets a new hobby and Ron employs the Parks department to help sell his cabin. In the other episode, Leslie tries to add fluoride to Pawnee's drinking water and plays with the Colts.

"Parks & Rec" airs Thursdays, 8 p.m. EST on NBC.

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