The Tonight Show is an American late-night talk show that has aired on NBC since 1954. It is the longest currently running regularly scheduled entertainment program in the United States, and the third longest-running show on NBC, after Meet the Press and Today.

The Tonight Show has been hosted by Steve Allen (1954–1957), Jack Paar (1957–1962), Johnny Carson (1962–1992), Jay Leno (1992–2009, 2010–present), and Conan O'Brien (2009–2010). Many guest hosts have also appeared, particularly during the Paar and Carson eras.

The longest serving host to date was Carson, who hosted The Tonight Show Starring Johnny Carson for 29 seasons, from the fall of 1962 through the spring of 1992. The current host of the show is Jay Leno, who had previously hosted the show from 1992–2009, and began his current tenure on March 1, 2010.

NBC's Broadway Open House, which began in 1950, first demonstrated the potential for late-night network programming. The format for The Tonight Show can be traced to a nightly 40 minute local New York show hosted by Allen, which premiered in 1953 on what is now WNBC-TV. Beginning in September 1954, it was renamed Tonight! and shown on the full NBC network. Detailed history of hosts can be found here [1].

James Douglas Muir "Jay" Leno /ˈlɛnoʊ/ (born April 28, 1950) is an American stand-up comedian and television host.

From 1992 to 2009, Leno was the host of NBC's The Tonight Show with Jay Leno. Beginning in September 2009, Leno started a primetime talk show, titled The Jay Leno Show, which aired weeknights at 10:00 p.m. (Eastern Time, UTC-5), also on NBC. After The Jay Leno Show was canceled in January 2010 amid a host controversy, Leno returned to host The Tonight Show with Jay Leno on March 1, 2010.

James "Jay" Leno was born in New Rochelle, New York, in 1950. His mother, Catherine (née Muir; 1911–1993), a homemaker, was born in Greenock, Scotland, and came to the United States at age 11. Leno's father, Angelo (1910–1994), who worked as an insurance salesman, was born in New York to immigrants from Flumeri, Italy. Leno grew up in Andover, Massachusetts, and although his high school guidance counselor recommended that he drop out of school, he later obtained a Bachelor's degree in speech therapy from Emerson College, where he started a comedy club in 1973. Leno's siblings include his late older brother, Patrick, who was a Vietnam veteran and a lawyer.

John William "Johnny" Carson (October 23, 1925 – January 23, 2005) was an American television host and comedian, known for thirty years as host of The Tonight Show Starring Johnny Carson (1962–1992). Carson received six Emmy Awards, the Governor Award, and a 1985 Peabody Award. He was inducted into the Television Academy Hall of Fame in 1987. Johnny Carson was awarded the Presidential Medal of Freedom in 1992 and received a Kennedy Center Honor in 1993.

Although his show was already successful by the end of the 1960s, during the 1970s Carson became an American icon and remained so until his retirement in 1992. He adopted a casual, conversational approach with extensive interaction with guests, an approach pioneered by Arthur Godfrey and previous Tonight Show hosts Steve Allen and Jack Paar. Late night hosts David Letterman, Jay Leno, Conan O'Brien, Craig Ferguson, and Jimmy Fallon have all cited Carson's influence on their late-night talk shows, which resemble his in format and tone.

Carson was born in Corning, Iowa, in the year 1925, to Homer Lloyd "Kit" Carson, a power company manager, and Ruth Hook Carson, who was of Irish descent. He grew up in the nearby towns of Avoca, Clarinda, and Red Oak in southwest Iowa before moving to Norfolk, Nebraska, at the age of eight. At the age of twelve, Carson found a book on magic at a friend's house and immediately purchased a mail-order magician's kit. He debuted as "The Great Carsoni" at fourteen and was paid $3; many other performances at local picnics and country fairs followed.

Rosanna Lauren Arquette (born August 10, 1959) is an American actress, film director, and producer.

Arquette was born in New York City, the daughter of Brenda Olivia "Mardi" (née Nowak), an actress, poet, theater operator, activist, acting teacher, and therapist, and Lewis Arquette, an actor and director. Her paternal grandfather was comedian Cliff Arquette. Her mother was Jewish, the daughter of a Holocaust refugee from Poland. Her father was a convert to Islam and a descendant of explorer Meriwether Lewis. Her siblings Patricia, Alexis, Richmond, and David Arquette are also actors.

In 1963, Arquette's family moved to Chicago, where her father managed The Second City theater for several years. When she was eleven years old, her parents moved to a commune in Front Royal, Virginia. Arquette did not do well at school.^{[citation needed]} In 1974, she hitchhiked across the country with three older teenagers, eventually going to San Francisco, where she worked at renaissance and Dickens fairs. Her professional theater debut was May 27, 1977, appearing in the Story Theatre Musical production of Ovid's The Metamorphoses at the Callboard Theatre on Melrose Place in Los Angeles.^{[citation needed]}