The show has been hosted by six comedians: Steve Allen, Jack Paar, Johnny Carson, Jay Leno, Conan O'Brien, and Jimmy Fallon.
The Tonight Show is an American late-night talk show broadcast from the NBC Studios in Rockefeller Center in New York City, the show's original location (a tradition interrupted by decades of originating from various studios in the Los Angeles region), and it has aired on NBC since 1954.
