Katy Perry, Cris Collinsworth, Kacey Musgraves

The Tonight Show [Leno] Season 21 Episodes...

• s21e01 - Kevin Hart, Betty White
• s21e02 - Arnold Schwarzenegger, Chumlee & Rick Harrison
• s21e03 - Courteney Cox, Joy Behar
• s21e04 - Bill Maher, Nicole Polizzi, Jenni Farley
• s21e05 - Emma Stone, Josh Gad
• s21e06 - Dustin Hoffman, Big Bad Voodoo Daddy
• s21e07 - Ryan Seacrest, Keith Urban
• s21e08 - Ben Affleck, Kristen Bell
• s21e09 - Nicki Minaj, Billy Connolly
• s21e10 - Jessica Simpson, D.L. Hughley
• s21e11 - Mark Wahlberg, Ali Wentworth
• s21e12 - Naomi Watts, Richard Engel
• s21e13 - Bob Costas, Big Boi
• s21e14 - Sally Field, Michael Kosta
• s21e15 - Dana Carvey, Emmy Rossum
• s21e16 - Heidi Klum, Seann Willam Scott
• s21e17 - Dustin Hoffman, Kenny Loggins
• s21e18 - Robert DeNiro, Sherri Shepherd
• s21e19 - Catherine Zeta-Jones, Donny Deutsch
• s21e20 - Whitney Cummings, Jackie Weaver
• s21e21 - Aubrey Plaza, Holly Williams
• s21e22 - Quvenzhane Wallis, Benh Zeitlin
• s21e23 - Wanda Sykes, Branford Marsalis
• s21e24 - Hugh Jackman, Jessica Chastain
• s21e25 - Josh Duhamel, Kathryn Bigelow
• s21e26 - Tim McGraw, Bar Refaeli
• s21e27 - Amy Adams, Adam Carolla
• s21e28 - Seth MacFarlane, Jenna Elfman
• s21e29 - James Spader, Lior Suchard
• s21e30 - Charles Barkley, Bob Fisher
• s21e31 - Anne Hathaway, Lester Holt
• s21e32 - Jarod Miller, Colbie Caillat
• s21e33 - Kathy Griffin, David Feherty
• s21e34 - Kevin Bacon, Dennis Rodman
• s21e35 - Robin Wright, Bonnie Raitt
• s21e36 - Chelsea Handler, Edythe Kirchmaier
• s21e37 - Arsenio Hall, Tristan Prettyman
• s21e38 - Meredith Vieira, Richard Roeper
• s21e39 - Russell Crowe, Eli Roth
• s21e40 - Colin Farrell, Joey King
• s21e41 - David Duchovny, J.B. Smoove
• s21e42 - Steve Carell, Joey King
• s21e43 - Bill O'Reilly, Abigail Breslin
• s21e44 - Halle Berry, Rachel Maddow
• s21e45 - Olivia Wilde, Nick Offerman
• s21e46 - Jerry Seinfeld, Mark Cuban
• s21e47 - James Franco, Jay Mohr
• s21e48 - Craig Ferguson, Vera Farmiga
• s21e49 - Morgan Freeman, James Hunter
• s21e50 - Jenna Fischer, Dennis Rodman
• s21e51 - Vanessa Hudgens, Chris O'Dowd
• s21e52 - Dwayne Johnson, Chris Paul
• s21e53 - Don Cheadle, Wynonna Judd
• s21e54 - Gerard Butler, Crystal Bowersox
• s21e55 - Keith Urban, Paula Deen
• s21e56 - Kristin Chenoweth, Justin Willman
• s21e57 - Kim Kardashian, Willie Geist
• s21e58 - Matthew Perry, Kristen Schaal
• s21e59 - Blake Shelton, Jim Rome
• s21e60 - Rosario Dawson, Max Greenfield
• s21e61 - Eva Longoria, Terry Crews
• s21e62 - Demetri Martin, Gin Wigmore
• s21e63 - Julia Louis-Dreyfus, Anthony Jeselnik
• s21e64 - Rebel Wilson, Jackson Galaxy
• s21e65 - Charlie Sheen, Andy Enfield
• s21e66 - LL Cool J, Andy Cohen
• s21e67 - Adam Levine, Cyndi Lauper
• s21e68 - Diane Keaton, Trevor Moore
• s21e69 - Carol Burnett, Stephen Amell
• s21e70 - Emily Blunt, Black Rebel Motorcycle Club
• s21e71 - Gwyneth Paltrow, JB Smoove
• s21e72 - Robert Downey Jr., Kenny Smith
• s21e73 - Ben Kingsley, Larry the Cable Guy
• s21e74 - Cher & Georgia Holt, Dov Davidoff
• s21e75 - Kathy Griffin, Eli Roth
• s21e76 - Matt Lauer, AWOLNATION
• s21e77 - Chris Evans, Kevin Smith
• s21e78 - Magic Johnson, Savannah Guthrie
• s21e79 - Zach Braff, Connie Sawyer
• s21e80 - Ken Jeong, Emeli Sande
• s21e81 - Shakira, Marc Maron
• s21e82 - Aaron Eckhart, Sherri Shepherd
• s21e83 - Miranda Lambert, Ross Matthews
• s21e84 - Wanda Sykes, Martha Stewart
• s21e85 - Usher, Nick Offerman
• s21e86 - Adam Sandler, Phil Jackson
• s21e87 - Mitt Romney, the winner of "American Idol"
• s21e88 - Vince Vaughn, Kenny Smith
• s21e89 - Owen Wilson, Wayde King & Brett Raymer
• s21e90 - Danny McBride, Khloe Kardashian Odom
• s21e91 - Henry Cavill, Jessica Buchanan & Erik Landemalm
• s21e92 - Russell Crowe, Andrea Bocelli
• s21e93 - Kevin Bacon, Bad Company
• s21e94 - Jimmy Connors, Matthew Morrison
• s21e95 - Kevin Hart, Trace Adkins & Colbie Caillat
• s21e96 - Carson Daly, Betty White
• s21e97 - Armie Hammer, Dave Salmoni
• s21e98 - Billy Crystal, Pitbull
• s21e99 - Kathy Griffin, Billy Gardell
• s21e100 - David Gregory, the winner of "The Voice"
• s21e101 - Harvey Fierstein, the Mowgli's
• s21e102 - Terry Bradshaw, Steve Byrne
• s21e103 - Steve Carell, Ken Ilgunas
• s21e104 - Sandra Bullock, Bob Saget
• s21e105 - Whitney Cummings, Alex Minsky
• s21e106 - David Spade, Joey King
• s21e107 - Wanda Sykes, India.Arie
• s21e108 - Charlie Day, Jeffrey Dean Morgan
• s21e109 - Dane Cook, Nev Schulman
• s21e110 - John Malkovich, Olivia Munn
• s21e111 - Helen Mirren, Ben Schwartz
• s21e112 - Bill Hader, Eliot Spitzer
• s21e113 - Savannah Guthrie, Anthony Jeselnik
• s21e114 - Zachary Levi, Danica Patrick
• s21e115 - Jane Lynch, Serena Ryder
• s21e116 - Anthony Hopkins, Amy Schumer
• s21e117 - Howie Mandel, Marisa Miller
• s21e118 - Gillian Anderson, Jim Rash & Nat Faxon
• s21e119 - Aaron Paul, Selena Gomez
• s21e120 - Ashton Kutcher, Jayma Mays
• s21e121 - Cate Blanchett, Michael B. Jordan
• s21e122 - Katy Perry, Cris Collinsworth
• s21e123 - Kristen Bell, Phillip Phillips
• s21e124 - Kristin Chenoweth, Josh Gad
• s21e125 - Kate Hudson, Bob Costas
• s21e126 - Casey Affleck, Allison Janney
• s21e127 - Meredith Vieira, Jim Norton
• s21e128 - Bryan Cranston, Karolina Kurkova
• s21e129 - President Barack Obama
• s21e130 - Matt Damon, Anna Faris
• s21e131 - Robin Williams, Mark Cuban
• s21e132 - Jason Sudeikis, Jim Stacy
• s21e133 - Jeff Daniels, Sherri Shepherd
• s21e134 - Josh Duhamel, J.B. Smoove
• s21e135 - Matt LeBlanc, Sky Blu
• s21e136 - Julie Scardina, Rod Stewart
• s21e137 - Sen. John McCain, Diablo Cody
• s21e138 - Bill Maher, Aisha Tyler
• s21e139 - Christina Applegate, Rob Corddry
• s21e140 - Vince Vaughn, Olivia Munn
• s21e141 - Simon Cowell, Adam Carolla
• s21e142 - Martin Short, Meghan McCain
• s21e143 - Rose Byrne, Jennifer Nettles
• s21e144 - Charlie Sheen, Jim Rome
• s21e145 - Hugh Jackman, Aisha Tyler
• s21e146 - Zooey Deschanel, Terry Crews
• s21e147 - Chris Hemsworth, Kristen Schaal
• s21e148 - Neil Patrick Harris, Demi Lovato
• s21e149 - Christina Aguilera, Joy Behar
• s21e150 - Tim Allen, Dwayne Wade
• s21e151 - Jimmy Fallon, Lior Suchard
• s21e152 - Season 21, Episode 152
• s21e153 - Olivia Wilde, Adam Scott
• s21e154 - Dana Carvey, Cee-Lo Green
• s21e155 - Julia Louis-Dreyfus, Ron Paul
• s21e156 - Sandra Bullock, Gregory Porter
• s21e157 - Magic Johnson, Marjorie Johnson
• s21e158 - Joseph Gordon-Levitt, Jay Mohr
• s21e159 - Kathy Griffin, Newt Gingrich
• s21e160 - Julianne Moore, Billy Gardell
• s21e161 - Terry Bradshaw, Nelly
• s21e162 - Drew Barrymore, D.L. Hughley
• s21e163 - Billy Crystal, Nicole Polizzi, Jenni Farley
• s21e164 - Whitney Cummings, Ann Romney
• s21e165 - Lauren Graham, Chris Matthews
• s21e166 - Rosie Perez, Tenacious D
• s21e167 - Michael Douglas, Larry the Cable Guy
• s21e168 - Kristin Chenoweth, Ross Matthews
• s21e169 - Harrison Ford, Piers Morgan
• s21e170 - Emma Roberts, Dave Salmoni
• s21e171 - Wanda Sykes, Richard Engel
• s21e172 - Adam Levine, Ali Wentworth
• s21e173 - Savannah Guthrie, Mark Cuban
• s21e174 - Kim Kardashian, Abigail Breslin
• s21e175 - Matthew McConaughey, Eli Roth
• s21e176 - Andy Cohen, Empire of the Sun
• s21e177 - Anthony Hopkins, Sting
• s21e178 - Liam Hemsworth, JB Smoove
• s21e179 - Ellen DeGeneres, Shaun White
• s21e180 - Andy Sandberg, the Neighbourhood
• s21e181 - Mariska Hargitay, Sen. Ted Cruz
• s21e182 - Casey Affleck, Kelly Clarkson
• s21e183 - Matt Lauer, Carrot Top
• s21e184 - Bill Cosby, Chris Pratt
• s21e185 - Craig Ferguson, JRand
• s21e186 - Bill O'Reilly, Guy Fieri
• s21e187 - Whoopi Goldberg, TOTEM from Cirque de Soleil
• s21e188 - George W. Bush, Ty Barnett
• s21e189 - Blake Shelton, Kathie Lee Gifford
• s21e190 - Kristen Bell, David Gregory
• s21e191 - Jim Parsons, John Downer
• s21e192 - Bette Midler, Michael Buble
• s21e193 - Quentin Tarantino, Jim Stacy
• s21e194 - Garth Brooks, Jim Edds
• s21e195 - Christina Aguilera, Jay Mohr
• s21e196 - Simon Cowell, Megyn Kelly
• s21e197 - Kirstie Alley, Ernie Brown Jr.
• s21e198 - Tyler Perry, Ken Jeong
• s21e199 - Kevin Hart, Brooklyn Decker
• s21e200 - Carson Daly, Billy Ray Cyrus
• s21e201 - Meredith Vieira, Jake Bugg
• s21e202 - Olivia Wilde, Julie Scardina
• s21e203 - Christina Applegate, Kevin Nealon
• s21e204 - Sylvestor Stallone, Judd Apatow
• s21e205 - Michael Strahan, Leona Lewis
• s21e206 - Louis C.K., Sen. John McCain
• s21e207 - Mark Wahlberg, Jeff Foxworthy
• s21e208 - Steve Carell, Kathryn Hahn
• s21e209 - Leslie Mann, David Koechner
• s21e210 - Kevin Bacon, Sherri Shepherd
• s21e211 - Jennifer Lopez, Aaron Eckhart
• s21e212 - Matt Damon, Larry the Cable Guy
• s21e213 - Vanessa Hudgens, Foreigner
• s21e214 - Mark Harmon, Kristin Chenoweth
• s21e215 - Chelsea Handler, Bob Costas
• s21e216 - Season 21, Episode 216
• s21e217 - Adam Sandler, Ali Wentworth
• s21e218 - Charlie Sheen, Joy Behar
• s21e219 - Rep. John Boehner, Matt LeBlanc
• s21e220 - Terry Bradshaw, Darius Rucker
• s21e221 - Dana Carvey, Earvin Johnson
• s21e222 - Wanda Sykes, Thomas Haden Church
• s21e223 - Bill Maher, Whitney Cummings
• s21e224 - Miley Cyrus, Howie Mandel
• s21e225 - Tim Allen, Dave Salmoni
• s21e226 - Jimmy Fallon, Betty White
• s21e227 - Matthew McConaughey, Charles Barkley
• s21e228 - Sandra Bullock, Blake Shelton
• s21e229 - Billy Crystal, Garth Brooks

The Tonight Show [Leno] Show Summary

Jay Leno follows in the footsteps of legendary NBC late-night hosts Steve Allen, Jack Paar and Johnny Carson. Having celebrated the show's 11th anniversary in May 2003, Leno has created his own unique late-night style with a combination of humor, talk and entertainment each night at 11:35 p.m. ET - the wee hours when viewers want to wind down with a few laughs before drifting off to dreamland.

Conan O'Brien took over as host in June 2009.
However, after Jay's 10pm show was canceled and an attempted time slot change for 'The Tonight Show', Conan O'Brien decided to quit hosting & leave NBC on January 22nd, 2010.
Jay Leno will be reinstated as 'The Tonight Show' host on March 1st, 2010.