Jay Leno (guest host), Jane Pauley, Phil Hartman, B.B. King, Dwight Yoakam

Jay Leno (guest host), James Avery, Paul Hogan, Lou Rawls

Jay Leno (guest host), John Mendoza, The Jeff Healey Band

Jay Leno (guest host), Jacqueline Bisset, Johnny Mathis

Jay Leno (guest host), Kathy Bates, Barry Manilow, K.T. Oslin

Jay Leno (guest host), Glenn Close, John Chancellor, Bill Maher, Rosanne Cash

Mark Schiff, Kadeem Hardison, Dolly Parton

Bob Hope, Kirstie Alley, John Travolta, The Go-Go's

Richard Benjamin, Johnn Clegg & Savuka

Jay Leno (guest host), Clint Eastwood, Olivia Newton-John, Whitney Houston

David Letterman, Patti LaBelle

George Carlin, Pete Fountain

Kelly McDonald, Randy Travis

Jay Leno (guest host), Charlie Sheen, Judy Collins

James Garner, Andy Grayson, Sara Hickman

Dean Dill, Cirque du Soleil

Father Guido Sarducci, Ray Charles

Jay Leno (guest host), Sharon Gless, Michael Moriarty, Mariah Carey

Jester Hairston, Rita Rudner, Joan Benny, Jimmy Buffett

Bob Newhart, Catherine O'Hara, Celine Dion

Harry Anderson, Bob Uecker, Dan Fogelberg

Jay Leno (guest host), Marilu Henner, Franklin Ajaye, Charles Kuralt

George Foreman, Joanna Kerns, James Ingram

Super Dave Osborne, Paul Reiser

George Segal, Neil Patrick Harris

Jay Leno (guest host), Robert Urich, Sally Jessy Raphael, Johnny Dark

Ed Begley, Jr., Calvin Trillin, Cupstacking Champions

Carl Reiner, Shelby Foote, Garry Morris

John Larroquette, Anthony Griffith (actor), Kevin Pollak

Jay Leno (guest host), Kate Jackson, Wayne Cotter, Patty Loveless

Jay Leno (guest host), Angela Lansbury, Walter Cronkite, John Denver

Jay Leno (guest host), Kadeem Hardison, Barry Levinson, The Neville Brothers

Jay Leno (guest host), Amy Irving, Rich Hall, Scott Bakula

Jay Leno (guest host), Craig T. Nelson, Helen Thomas, Garth Brooks

Jay Leno (guest host), Tom Selleck, Will Smith, Take 6

Teri Garr, Kevin Pollak

Father Guido Sarducci, Jim Fowler

Shelby Foote, Louie Bellson

Jay Leno (guest host), Elizabeth Perkins, Perry King, Paula Poundstone

Robert Klein, Jackie Collins, Bela Fleck & The Flecktones

Alan King, Maryedith Burrell, George Benson

Rita Rudner, Becky Klemt, Johnny Clegg & Savuka

Jay Leno (guest host), Paul Sorvino, Peggy Lipton, John Hiatt

Jay Leno (guest host), Fred Savage, Matthew Modine

28th Anniversary Show

Garry Shandling, Victoria Williams

Jay Leno, Betty White, Ladysmith Black Mambazo

Jay Leno (guest host), Phil Collins, Jimmy Smits, Celine Dion

Jay Leno (guest host), Christine Lathi, Ed Begley, Jr., Dinah Manoff

Jay Leno (guest host), Carol Burnett, Will Smith, Regis Philbin

Jay Leno (guest host), Shelley Long, Keenen Ivory Wayans, The Time

Jay Leno (guest host), Burt Reynolds, Robert Easton, Wynton Marsalis

Bob Hope, Park Overall, Pete Sampras

Martin Mull, Anne DeSalvo

Patrick Duffy, Kevin Meaney, Kid Creole & The Coconuts

Jay Leno (guest host), Candice Bergen, Charlie Schlatter, George Miller

Jeff Dunham, Etta James & The Roots Band, The Passing Zone

Zachary Lavoy, Charles Dutton, K.T. Oslin

Charles Grodin, Amy Yasseck, B.B. King

Jay Leno (guest host), Shirley MacLaine, David Lynch, Richard Libertini, Paul Young

Tony Randall, Mark Pitta, George Foreman

Kid Inventors, Natalie Cole

Richard Lewis, Brooke Adams, The Leningrad Swing Jazz Band

Jay Leno (guest host), Emilio Estevez, Phil Hartman, Lauren Tom

Patrick Swayze, Oleta Adams

Denise Wells, David Steinberg

Harry Anderson, Joel Murray

Jay Leno (guest host), Steve Martin, James Belushi, James Ingram

Jay Leno (guest host), Henry Winkler, Kevin Nealon, Sarah Jessica Parker

Jay Leno (guest host), Tim Matheson, Phil Hartman, Mike Myers, Wayne Cotter, Shari Belafonte

Jay Leno (guest host), Mel Gibson, Harley Jane Kozak, David Alan Grier

Jay Leno (guest host), Jon Voight, Kevin Pollak, Steven R. Kutcher, Howard Hewitt

Jay Leno (guest host), Kirk Douglas, Willy T. Ribbs, Taylor Danne

David Brenner, Art Donovan, Al Green

Maria Shriver, Michael McDonald

Don Rickles, The Allman Brothers Band

Jay Leno (guest host), Brian Dennehy, Park Overall, Lou Gramm

Cathy Guisewite, Brian Haley, David Horowitz

Liv Ullman, J.J. Wall, Patrika Darbo

Michael Oliver, John Goodman, Joe Williams

Jay Leno (guest host), Jack Palance, Patty Loveless

Maggie Gill, Roseanne Barr, Tom Arnold

Cathy Ladman, Tom Wilson, Pointer Sisters

Mike Dugan, Monica Selles, Dionne Warwick

Jay Leno (guest host), Patrick Swayze, Randy Quaid, Jeff Foxworthy, Reba McEntire

Bob Saget, Laura Branigan

George Segal, King's Sisters

Dana Carvey, Anthony Griffin

Jay Leno (guest host), Charlie Korsmo, Martin Mull, Bill Maher, Lyle Lovett

Jay Leno (guest host), Larry King, Jeff Daniels, Tom Dreesen

Jay Leno (guest host), Tom Cruise, Phil Hartman, Helen Hayes, Barry White

Jay Leno (guest host), Joan Embery, Fred Roggin

Jay Leno (guest host), Peter Scolari, Rita Rudner, Lauren Tom, Basia

Jay Leno (guest host), Tony Randall, Wil Shriner, Faith Ford, Freda Payne

Jay Leno (guest host), Bill Murray, Alan King, Leon Redbone

Jay Leno (guest host), Deborah Norville, Thom Sharp, Peter Weller

Jay Leno (guest host), Julia Louis-Dreyfus, Phil Hartman, Roy Blount, Jr., Linda Hopkins

Jay Leno (guest host), Molly Ringwald, Kadeem Hardison, Bill Engvall, Cowboy Junkies

Jay Leno (guest host), Harry Hamlin, Sharon Stone, Julia Child, Lenny Kravitz

Super Dave Osborne, Kirk Douglas

Garry Shandling, Barry Manilow

Bob Newhart, Peter Jennings, David Byrne

Jay Leno (guest host), Bill Cosby, Luther Vandross

Patrika Darbo

Jay Leno (guest host), Cathy Guisewite, Edie McClurg, Stevie Ray Vaughan

Tony Bennett, A. Whitney Brown, Judith Hoag

Jay Leno (guest host), Larry Miller, John Chancellor, Joe Cocker

Buddy Hackett, Teresa Ganzel, Dave Thomas

David Brenner, Arnold Schwarzenegger, 1990 National Acrobatic Champions

Jerry Seinfeld, Dizzy Gillespie

Jay Leno (guest host), George Carlin, Fran Drescher, Dominick Dunne

Bob Hope, Al Green

Dr. Henry Merritt Stenhouse, Barbara Hershey, Jeff Cesario

George Foreman, Sarah Brightman

Jay Leno (guest host), Keith Carradine, Blake Clark, Diana Bellamy

Joe Piscopo, Dirty Dozen Brass Band

John Larroquette, Mark Schiff, Kurt Thomas

Tony Randall, Lara Flynn Boyle, Andy Koffman & His Frogs

Jay Leno (guest host), Teri Garr, Eva Marie Saint, Keenen Ivory Wayans

Judge Reinhold, Rita Rudner

Richard Jeni, Daniel Menendez

Dabney Coleman, Yakov Smirnoff

Jay Leno (guest host), Armand Assante, Clive James, Jane Goodall

Mary Peyton-Meyer, Robert Klein, Kevin Spacey

Tim Conway, Clint Black

Sonny Bono, Alexie Sultanov

Jay Leno (guest host), Chuck Norris, Meredith Baxter Birney, Jeff Altman, Ricky Van Shelton

Jay Leno (guest host), Valerie Bertinelli, Paul Reiser, The Desert Rose Band

Jay Leno (guest host), Alan Thicke, Fred Roggin, Julia Foreham

Jay Leno (guest host), Christine Lahti, Crystal Bernard, Huber Marionettes

Jay Leno (guest host), Dweezil Zappa, Jerry Seinfeld, Judith Hoag

Jay Leno (guest host), Billy Crystal, Dave Thomas, Michel'le

Paul Reiser, Mary Peyton-Meyer, Johnny Clegg & Savuka

Paula Poundstone, Art Donovan, Milt Hinton

Richard Lewis, Ray Charles

Jay Leno (guest host), Carol Siskind, Robert Hays, Mike Binder

Bob Hope, Jeff Dunham, B.B. King

Bryan Williams, Lily Tomlin, Bulgarian State Female Vocal Choir

Dudley Moore, Kevin Pollak, Shawn Colvin

Jay Leno (guest host), Rutger Hauer, Bob Costas, They Might Be Giants

Jay Leno (guest host), Roger Moore, Sam Donaldson

Jay Leno (guest host), Dana Carvey, Wayne Cotter, Dana Delany

Jay Leno (guest host), Carol Burnett, Martin Mull, Edie McClurg

Jay Leno (guest host), Jean Stapleton, Starlight Express

Jay Leno (guest host), Marsha Warfield, Jimmy Aleck, Roy Blount, Jr., Regina Belle

Kareem Abdul-Jabbar, Park Overall, Sara Hickman

Larry Miller, Lyle Lovett

George Preston, Don McLean

Jay Leno (guest host), Valerie Harper, Rain Pryor, Mario Joyner

Jeff Cesario, Lee Trevino

Hassie & Lassie, Smokey Robinson

Jonathan Winters, Randy Travis

Jay Leno (guest host), Harry Hamlin, Neil Patrick Harris, Ritch Shydner, Michael Bolton

Meredith Vieira, Ofra Haza

Victoria Jackson, Calvin Trillin, The Temptations

Renee Hall, Burt Reynolds, Ray Price

Jay Leno (guest host), Jeff Foxworthy, Crispin Glover, Natalie Cole

Dabney Coleman, Kenneth Branagh, Restless Heart

Jessie Hairston, Aaron Neville, Linda Ronstadt

Bob Newhart, Buster Douglas, Bo Diddley

Jay Leno (guest host), Bea Arthur, Paula Poundstone, Al Jarreau

Bob Hope, Magic Johnson, Joe Williams

Super Dave Osborne, Stephanie Mills

John Larroquette, Dr. Robert Ballard, Jack Jones

Jay Leno (guest host), Carol Kane, Dom Irrera, Stephen Baldwin, Laurie Anderson

Beau Bridges, Rita Rudner, Melissa Manchester

Harry Anderson, Bobby Slayton, Eugene Fodor

Don Rickles, Jon Serl

Jay Leno (guest host), Jason Bateman, Linda Hopkins

Carl Reiner, Jennifer Grey

Stephanie Yu, Kenneth Branagh, Cathy Guisewite

Martin Short, Cathy Ladman, Bonnie Hunt

Jay Leno (guest host), Connie Chung, Dennis Hopper, Highway 101

Jay Leno (guest host), Joanna Kerns, Charles Grodin, Bonnie Raitt

Jay Leno (guest host), Jack Palance, Paul Shaffer

Jay Leno (guest host), Shelley Winters, Mr. Wizard, Hoyt Axton

Jay Leno (guest host), Steve Kelly, Gloria Estefan and Miami Sound Machine

Jay Leno (guest host), Sandy Duncan, Michael Gross, Fred Roggin, Poco

Michael Landon, Jimmy Brogan, Roger Reese

Joan Embery, Art Donovan, Ron Silver

Baxter Black, The Roches

Jay Leno (guest host), Andie MacDowell, Marsha Warfield, Michael Moore

Jay Leno (guest host), Charlton Heston, Roy Blount, Jr.

Bill Black, Tony Randall, Diane Nichols, Kenny Rankin

Richard Benjamin, Larry Gatlin

Jay Leno (guest host), Denzel Washington, John Chancellor, Faith Ford, Richard Marx

Rita Rudner, K. T. Oslin

Tony Danza, Chuck Berry

Jay Leno (guest host), Richard Chamberlin, John Mendoza, Craig T. Nelson