Mike Tyson on The Tonight Show

Mike Tyson on The Tonight Show

Here, Jimmy Fallon! Mike Tyson settles a bet during this Tonight Show cameo.
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Joan Rivers on The Tonight Show

Joan Rivers on The Tonight Show

Joan Rivers stops by the first Tonight Show under the guidance of Jimmy Fallon in this photo.
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Tracy Morgan on The Tonight Show

Tracy Morgan on The Tonight Show

Tracy Morgan settles a bet here with Jimmy Fallon. He was wrong about the comedian never hosting The Tonight Show.
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Sarah Jessica Parker on The Tonight Show

Sarah Jessica Parker on The Tonight Show

Sarah Jessica Parker paid Jimmy Fallon $100 because she lost a bet with the new Tonight Show host.
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Tina Fey on The Tonight Show

Tina Fey on The Tonight Show

Tina Fey lost a bet to Jimmy Fallon. He did end up as Tonight Show host after all.
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Stephen Colbert on The Tonight Show

Stephen Colbert on The Tonight Show

Stephen Colbert snaps a selfie with Jimmy Fallon on the latter's debut as Tonight Show host.
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Seth Rogen on The Tonight Show

Seth Rogen on The Tonight Show

Seth Rogen made a fun cameo on Jimmy Fallon's first episode as host of The Tonight Show.
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Lindsay Lohan on The Tonight Show

Lindsay Lohan on The Tonight Show

Lindsay Lohan stopped by The Tonight Show with Jimmy Fallon. She was one of many big names to show up for his premiere.
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Mariah Carey on The Tonight Show

Mariah Carey on The Tonight Show

Pay up, Mariah Carey! The singer owes Jimmy Fallon a few bucks.
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Kim Kardashian on The Tonight Show

Kim Kardashian on The Tonight Show

Kim Kardashian was among the many celebrities who stopped by Jimmy Fallon's Tonight Show debut. She owed him some money.
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