The Tonight Show is alive...with the sound of music! Jay Leno's final episode of NBC's late-night hit was a celebration of the host's 22-year stint behind the desk, complete with an elaborate Sound of Music-inspired song-and-dance led by Billy Crystal, Leno's first and last guest on the show. 

Joined by a parade of celebs including Kim Kardashian, Jack Black, Oprah Winfrey, and Jim Parsons, the City Slickers actor paid tribute to Leno with a parody of the Von Trapp family's "So Long, Farewell" ditty. "There's a sad sort of clanging from the clock in the hall, and the bells in the steeple too," he began. "And all the executives that run NBC are popping in to say you're through."

Black, Kardashian, Winfrey, Parsons, Sheryl Crow, Carol Burnett, and Chris Paul each sang verses, too, changing the original lyrics to quippy, personalized jokes. Burnett, for example, did her famous Tarzan yell, while Parsons poked fun at Leno's big chin.

One of the best lines, however, went to Winfrey, who sang: "So long, farewell, you really raised the bar / If you were me, you'd buy them all a car!"

Watch the hilarious tribute above!