It was a blast from the past a minute for Jay Leno while taping his final episode of The Tonight Show.
But after Seth MacFarlane popped up unexpectedly last week to join Bill Maher for a "Thanks for the Memories"-style tribute, Leno didn't really think that regularly scheduled guests Billy Crystal and Garth Brooks would be the only ones who showed up to see him off, right?
Sure enough, the celebrity cameos were many, and even those who both sat in the guest's chair and were the target of a lot of his jokes over the years came to say goodbye. Or, in this case, sing "So Long Farewell."
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Count Kim Kardashian among those who surprised Leno tonight with a special rendition of the Sound of Music classic.
"So long, farewell, tonight I told my folks," Kim sang, "and now, I won't be the butt of Leno's jo-okes."
Actually, Kim got off pretty easy compared to some. An official tally compiled by the Center for Media and Public Affairs at George Mason University showed that the biggest target was on Bill Clinton's back, the scandal-tinged former president leading all famous types with 4,607 jokes cracked at his expense--1,368 more than runner-up George W. Bush.
Kim was way down the totem pole in 20th place with 37 jokes, fewer than Justin Bieber (the pace must have really picked up in that department recently), Britney Spears and Charlie Sheen.
Sheryl Crow, Jim Parsons, Oprah Winfrey (she would've bought her audience cars, Jay), Carol Burnett and Jack Black also joined Kim in song--a touching tribute that brought tears to the usually very stoic Tonight Show host's eyes.
"Boy, this is the hard part," an emotional Leno said toward the end of the taping. "I want to thank you--the audience. You folks have been just incredibly loyal and... this is tricky...We wouldn't be on the air without you people. Secondly, this has been the greatest 22 years of my life."
"I am the luckiest guy in the world," he added. "I got to meet presidents and astronauts and movie stars. It's just been incredible."
The final episode of Late Night With Jimmy Fallon airs Friday, and Fallon takes over The Tonight Show starting Feb. 17.
But Leno actually already has a new gig: In a taped goodbye message for Jay, President Barack Obama revealed he was appointing the star ambassador to Antarctica.
"You made a lot of jokes about me over the years--I'm not upset," Obama assured him. "Hope you've got a coat, funny man!"