Caught on camera: Kim Kardashian, Mariah Carey, Mike Tyson...

Kim Kardashian visits 'The Tonight Show Starring Jimmy Fallon' at Rockefeller Center in New York City. (Photo by Getty Images)

Mariah Carey visits 'The Tonight Show Starring Jimmy Fallon' (Photo by Getty Images)

Will Smith visits The Tonight Show (Photo by Getty Images)

Sarah Jessica Parker visits The Tonight Show (Photo by Getty Images)

Mike Tyson visits The Tonight Show (Photo by Getty Images)

Robert De Niro visits The Tonight Show (Photo by Getty Images)

Stephen Colbert visits The Tonight Show (Photo by Getty Images)

Tina Fey visits The Tonight Show (Photo by Getty Images)

Lindsay Lohan visits The Tonight Show (Photo by Getty Images)

Joan Rivers visits The Tonight Show (Photo by Getty Images)

Seth Rogen visits The Tonight Show (Photo by Getty Images)

Kristen Wiig impersonates Harry Styles during a taping of 'The Tonight Show Starring Jimmy Fallon' at Rockefeller Center. (Photo by Getty Images)

Jerry Seinfeld visits The Tonight Show (Photo by Getty Images)

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