14 Classic Jay Leno Moments on the 'Tonight Show'
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19. Borat and Martha Stewart — Together Again
Aired: Nov. 9, 2006
Martha Stewart gamely agreed to demonstrate the fine art of bed-making to Sacha Baron Cohen's ever-feisty Borat, who humorously asked where to tie up a woman's arms and legs. Replied a deadpan Stewart: ''On the four posts.'' —Lynette Rice
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17. Tribute to Johnny Carson
Aired: Jan. 24, 2005
The day after Johnny Carson died, guests like Ed McMahon, Bob Newhart, and Don Rickles sat on the couch opposite Leno to pay tribute to the former host of The Tonight Show. —Lynette Rice
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15. First-Ever Guest on The Tonight Show With Jay Leno
Aired: May 25, 1992
After performing his first opening monologue (which featured a joke about Vice President Dan Quayle and the controversy over Murphy Brown becoming a single mom), Leno welcomed Billy Crystal as his first guest. Crystal then spoofed Bette Midler's memorable performance of ''You Made Me Love You'' to the retiring Johnny Carson. —Lynette Rice
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14. Burying the Hatchet (Temporarily) With Jimmy Kimmel
Aired: Jan. 10, 2008
The David Letterman-loving (and formerly Jay Leno-bashing) Jimmy Kimmel let bygones be bygones during the 100-day writers' strike by agreeing to appear on The Tonight Show. The two late-night hosts became kindred spirits during the labor dispute because both were forced to go on the air without the help of their (picketing) comedy scribes. Too bad it didn't last. —Lynette Rice
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13. Paul Newman Goes Fast and Furious
Aired: April 8, 2005
The actor and racing enthusiast takes on Leno in the Indy 500 of go-cart races, handily winning a loop around the soundstages. It's one of the car-crazy host's favorite episodes. —Lynette Rice
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11. Katie Couric and Jay Leno Switch Jobs
Aired: May 12, 2003
Leno kicks it with the Today show's Matt Lauer early morning in New York, and Couric stays up way past her bedtime to see how the late-night hosts live. —Lynette Rice
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10. The Joke's on Jacko
Aired: March 4-10, 2005
Leno — forbidden to make fun of Michael Jackson since being called as a witness in his child-molestation trial — invites comedians Roseanne, Dennis Miller, and others to sub in and tell the jokes for him. —Lynette Rice
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9. Angie Harmon Says Yes
Aired: March 13, 2000
The Law & Order star thinks she's chatting with Leno to talk up her show until her boyfriend, the New York Giants' Jason Sehorn, surprises her with a marriage proposal. —Lynette Rice
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7. Cheers Says Cheers!
Aired: May 20, 1993
Leno takes his show to Boston, where the raucous cast members of Cheers are celebrating the series finale — and most are far too drunk to realize they're actually appearing live. —Lynette Rice
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6. Arnold Schwarzenegger Announces Candidacy
Aired: Aug. 6, 2003
Arnold bypasses the traditional press corps and uses Tonight to announce he'll run for governor of California. Even his advisers, who thought he was staying out of the race, are surprised. —Lynette Rice
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4. The Dancing Itos
Aired: March 2, 1995
Leno found endless fodder in the O.J. Simpson trial, eventually turning it into a recurring musical number with a kick line of Judge Lance Itos. —Lynette Rice
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3. Bobcat Goldthwait Gets Fired Up
Aired: May 6, 1994
The antic comedian ignites the guest chair, later claiming that he was avenging the cancellation of The Arsenio Hall Show. —Lynette Rice
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2. Barack Obama Interview
Aired: March 19, 2009
Obama becomes the first sitting president to appear on a late-night talk show, but causes a small stir when he compares his bowling skills to something out of the Special Olympics. —Lynette Rice
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1. Hugh Grant Is Sorry
Aired: July 10, 1995
After his highly publicized arrest for being caught with a prostitute, the British actor makes his first public appearance on the show, and Leno famously asks, ''What the hell were you thinking?'' The buzzworthy episode cements his ratings hold over David Letterman. —Lynette Rice