Jay Leno never had 1 guest host in the history of his show, Katie Couric. She did it for one show. Other than that, usually, he would just air a rerun of a previous show.
As a publicity stunt, Katie Couric is the only person to guest host Jay Leno's Tonight Show when she & he switched jobs for a day. He guest anchored TODAY on May 12, 2003.
Groucho Marx
Jay Leno (b. April 28, 1950) is a talk show host. Starting in 1992, he was the host of NBC's The Tonight Show With Jay Leno. In 2009, Leno left The Tonight Show to be replaced by Conan O'Brien. He then launched a new NBC show called The Jay Leno Show. When O'Brien left the network in 2010 due to a timeslot conflict, Leno returned to The Tonight Showwhere he currently is.
The Tonight Show hasn't had a guest host since the Johnny Carson years when Jay Leno was the permanent guest host. Katie Couric was a one time guest host when she & Jay Leno switched jobs for a publicity stunt. In 2003, she filled in on The Tonight Show & he filled in on TODAY. There has not been a guest host since then.
The Tonight Show with Jay Leno - 1992 22-47 was released on: USA: 11 December 2013
The Tonight Show with Jay Leno - 1992 19-182 was released on: USA: 19 July 2011
Katie Couric - they switched places.
terry bradshaw
The Robert Cray Band has: Played Themselves - Musical Guest in "Saturday Night Live" in 1975. Played Themselves - Musical Guest in "The Tonight Show with Jay Leno" in 1992. Played Musical Guest in "The Tonight Show with Jay Leno" in 1992. Played Themselves in "The Tonight Show with Jay Leno" in 1992. Played Themselves - Musical Guest in "Late Show with David Letterman" in 1993. Played Themselves in "Mulatschag" in 2006.
Tap Dogs has: Played Themselves - Musical Guest in "The Tonight Show with Jay Leno" in 1992. Performed in "The Tonight Show with Jay Leno" in 1992. Played Musical Guest in "The Tonight Show with Jay Leno" in 1992. Played Themselves - Guest Dancers in "The National Lottery" in 1994. Performed in "Noche de fiesta" in 1997. Played Themselves in "Vivement dimanche" in 1998.
The Tonight Show with Jay Leno was created on 1992-05-25.
Black Sheep has: Played Band in "Morena" in 1986. Played Themselves - Musical Guests in "In Living Color" in 1990. Played Musical Guest in "In Living Color" in 1990. Played Themselves - Musical Guest in "The Tonight Show with Jay Leno" in 1992. Played Guest in "The Tonight Show with Jay Leno" in 1992.
BBMak has: Played Themselves - Musical Guest in "The Tonight Show with Jay Leno" in 1992. Played Musical Guest in "The Tonight Show with Jay Leno" in 1992. Played BBMak in "All That" in 1994. Played Themselves - Musical Guest in "Trackers" in 1999. Played Themselves in "The 28th Annual American Music Awards" in 2001.
You can find a list of bands, musicians, and singers that have performed on "The Tonight Show with Jay Leno" here: http://www.squidoo.com/tonight-show-with-jay-leno-bands
Groucho Marx
Jay Leno (b. April 28, 1950) is a talk show host. Starting in 1992, he was the host of NBC's The Tonight Show With Jay Leno. In 2009, Leno left The Tonight Show to be replaced by Conan O'Brien. He then launched a new NBC show called The Jay Leno Show. When O'Brien left the network in 2010 due to a timeslot conflict, Leno returned to The Tonight Showwhere he currently is.
Randy Rogers Band has: Played Themselves - Musical Guest in "The Tonight Show with Jay Leno" in 1992. Played Themselves in "The Tonight Show with Jay Leno" in 1992. Played Themselves - Musical Guest in "Late Show with David Letterman" in 1993. Played Themselves - Musical Guest in "Conan" in 2010. Performed in "Red Dirt on the Rocks Live" in 2013.
The Duke Spirit has: Played Themselves - Musical Guest in "The Tonight Show with Jay Leno" in 1992. Played Musical Guest in "The Tonight Show with Jay Leno" in 1992. Played Themselves - Musical Guest in "Late Show with David Letterman" in 1993. Played Themselves in "Last Call with Carson Daly" in 2002. Played Themselves - Musical Guest in "Last Call with Carson Daly" in 2002.