Lifestyle expert Martha Stewart; actress & comedian Ana Gasteyer.

Actress & singer Jennifer Hudson performs and is interviewed; actor Patrick Wilson.

Author Stephen King; pro basketball player James Harden; singer-songwriter Sam Hunt performs.

Actor Andy Samberg; actress Emily VanCamp; humorist Roy Wood Jr.

Comic Michael Che; actress Rosamund Pike; indie rock band Colony House performs.

Actor Nathan Lane; singer Weird Al Yankovic; director Garry Marshall.

Actor Neil Patrick Harris; actress Rita Wilson; indie rock duo The Both performs.

Comic Sarah Silverman; actor & comic John Mulaney.

Actor James Spader; actress & comic Rachel Dratch; English synthpop duo La Roux performs.

Actor Jeffrey Tambor; actress Retta; "Impractical Jokers".

Actor Matthew Broderick; actor Zachary Quinto; English indie rock band Glass Animals performs.

Actor Robert Downey Jr; actress Emmy Rossum; comic Chris Gethard.

Actress Minnie Driver; actor Ike Barinholtz; country music duo Florida Georgia Line performs.

Actor & comic Dane Cook; actress Nasim Pedrad; writer Azar Nafisi.

Actor & comic Artie Lange; TV personality Nicole Richie; English rock duo Royal Blood performs.

TV Host Rachel Maddow; Matt Ryan; comic Wyatt Cenac.

Singers Carrie Underwood and Brad Paisley; actor Mark Consuelos; rapper T.I. performs.

Actress Amy Poehler; author George RR Martin; English singer-songwriter Captain Sensible performs.

Actor Edward Norton; author Michael Lewis; singer-songwriter Jessie Ware performs.

Actress Zooey Deschanel; actor Ken Marino; author Brad Meltzer.

Actress Kerry Washington; actor Michael C Hall; author Joe Hill.

Actor & comic Martin Short; model Coco Rocha; humorist Simon Rich.

Actor Elijah Wood; actress Cecily Strong; singer Ella Henderson performs.

Actress Eva Longoria; actor Rob Riggle; Irish musician Hozier performs.

Actor John Lithgow; actor Ben Feldman; singer-songwriter Jenny Lewis performs.

Actor David Hyde Pierce; Sen. Elizabeth Warren (D-Mass); actor Matt Jones.

Actor Jack McBrayer; actor Gael Garcia Bernal; rock band Ex Hex performs.

Actor Taylor Schilling; playwright Aaron Sorkin; comic Mike Lawrence.

TV host & comic Steve Harvey; actor Robin Lord Taylor; singer-songwriter Elle King performs.

Former pro basketball player Shaquille O'Neal; actor Eddie Redmayne; entrepreneur Gary Vaynerchuk.

Actress Keira Knightley; sportscaster Al Michaels; South African singer St. Lucia performs.

Actor & comic Russell Brand; actress Mayim Bialik; comic Fahim Anwar.

Actor John Goodman; actor Aasif Mandvi; post-punk revival rock band Interpol performs.

Actor Jason Sudeikis; actress Aubrey Plaza

Actress Allison Williams; actor Dan Patrick; magician Josh Beckerman.

Seth's family: Larry, Hilary and Josh Meyers

Actor Martin Freeman; actress Eliza Coupe; alt rock band The Eeries perform; musician Bob Mould sits in with the 8G Band

Actress Rosario Dawson; actor Eugenio Derbez; singer-songwriter Sturgill Simpson performs; musician Bob Mould sits in with the 8G Band.

Actress Cameron Diaz; actor Josh Radnor; journalist Richard Engel; musician Bob Mould sits in with the 8G Band.

Actor Mark Wahlberg; fashion designer Diane von Furstenberg; comic Kyle Dunnigan; musician Bob Mould sits in with the 8G Band.

Actor & rapper Curtis '50 Cent' Jackson; actress Patricia Clarkson; singer-songwriter James Bay performs.

Talk show host James Corden; actress Vanessa Bayer; entrepreneur Robert Earl.

Bill O'Reilly; actress Krysten Ritter; British electronic band Jungle performs.

Actor Christoph Waltz; actress Uzo Aduba; comic Greg Warren.

Actress Anna Kendrick; actor Timothy Spall; entrepreneur Martha Stewart.

Actress Jessica Lange; actress Molly Sims; TV hosts Men in Blazers.

Actress Jane Lynch; actress Lucy Hale; singer Jhené Aiko performs.

Actor Matt Leblanc; actor & comic Patton Oswalt.

Actress Kristin Chenoweth; actress Casey Wilson; actor Tony Danza; singer-songwriter Brandy Clark performs.

TV host Michael Strahan; actress Olivia Munn; filmmaker brothers Mark and Jay Duplass.

Former President Bill Clinton; actress Carrie Brownstein; musician Mali Music performs.

Actress Kristen Stewart; actor Andrew Rannells; comic Phoebe Robinson.

Actor Don Cheadle; actress Ruth Wilson; pop duo Night Terrors of 1927 perform.

Actress Lauren Graham; actor Rainn Wilson; comic book writer Brian Michael Bendis.

Actress & singer Jennifer Lopez; actor Nick Kroll; rapper Lupe Fiasco performs.

Actress Felicity Jones; former professional football player Hines Ward; comic Sebastian Maniscalco.

TV host & comic John Oliver; radio hosts Mike & Mike; rapper Kid Ink and singer Elle Varner perform.

Actress Debra Messing; actor Horatio Sanz; chef Mario Batali.

Actress Glenn Close; actress Gabrielle Union; musician J Mascis performs.

Actor David Duchovny; models Candice Swanepoel and Lily Aldridge; comic Brooks Wheelan.

Actor Bobby Moynihan; actors Eugene Levy and Daniel Levy; indie rock band The Bots perform.

Actress Sienna Miller; actress Tracee Ellis Ross; writer Brian Koppelman.

Actor William H. Macy; basketball analyst Kenny Smith; alt/indie rock band The Districts perform.

Actor Kevin Costner; actress Portia de Rossi; Westminster dog show announcer David Frei.

Actress Angie Harmon; folk rock singing duo Two Gallants perform.

Actor Matthew Perry; actress Taraji P. Henson; actor Anders Holm.

Actress Kathy Griffin; actor Peter Sarsgaard; country music band The Mavericks perform.

Actor Zachary Quinto; actress Mae Whitman; fashion designer Carolina Herrera.

Singer Mary J. Blige; actor Stephen Amell; indie pop band Misterwives perform.

Singer Christina Aguilera; actor & comic Colin Quinn; comic Kurt Braunohler.

Actor Will Forte; actress Ellie Kemper; alt/indie rock band Sleater-Kinney performs.

TV host Kelly Ripa; director Lee Daniels; indie pop/rock band Echosmith performs; singer Kate Pierson sits-in with The 8G Band.

Actor Tom Selleck; actress Anne Heche; author Marlon James; singer Kate Pierson sits-in with The 8G Band.

Actor Sir Kenneth Branagh; actress Felicity Huffman; electronic pop band Purity Ring performs; singer Kate Pierson sits-in with The 8G Band.

Actress Jada Pinkett Smith; actress Ginnifer Goodwin; actor Robert Smigel; singer Kate Pierson sits-in with The 8G Band.

Actress Keri Russell; Sen. Ted Cruz (R-TX); indie pop band Smallpools performs.

Actress Shailene Woodley; actor Jason Biggs; documentary filmmaker Alex Gibney.

Actress Lena Dunham; sportscaster Erin Andrews; Swedish pop singer Tove Styrke performs.

TV host Jay Leno; actresses Sara and Erin Foster; actor Seaton Smith.

Actor Jesse Tyler Ferguson; actress Christina Hendricks; rapper Charles Hamilton & singer Rita Ora perform.

Actor Ben Stiller; actress Elisha Cuthbert; journalist Chris Hayes.

Actor Jeremy Piven; writer David Benioff; CEO of MOMA Daniel Weiss; Welsh pop band Marina and the Diamonds performs.

Actor Kelsey Grammer; actress Paula Pell; The Count.

Actor Nathan Lane, Actress Kristen Schaal, American singer Børns performs.

Actor Kevin Bacon, actor & comic Chris D'Elia; chef Eric Ripert.

Actor & rapper Ludacris; actor Charlie Cox; hard rock band Dead Sara performs.

Actor Jesse Eisenberg; actor Rob Huebel; British electropop band Years & Years performs.

Actor Kit Harington; musician Adam Horovitz; folk rock band The Mountain Goats performs.

Actor Jon Cryer; actress Kat Dennings; restaurant owners Michael Chernow and Daniel Holzman.

Singer Pharrell Williams; actor Oscar Isaac; folk rock band Delta Rae performs.

Actress Taraji P. Henson; actress Carice Van Houten; comic Keith Alberstadt.

Actress Helen Mirren; ski racer Lindsey Vonn; English punk rock band Buzzocks perform; Arcade Fire's drummer Jeremy Gara sits in with The 8G Band.

Actor Ethan Hawke, actor Kumail Nanjiani; country singer Dwight Yoakam performs; Arcade Fire's drummer Jeremy Gara sits in with The 8G Band.

Actress Blake Lively; actress Gina Rodriguez; singer-songwriter Jessie Baylin performs; Arcade Fire's drummer Jeremy Gara sits in with The 8G Band.

Actor Russell Crowe; actor Seann William Scott; actress Emily Heller; Arcade Fire's drummer Jeremy Gara sits in with The 8G Band.

Actor James Spader; actress Jane Krakowski; English indie rock band The Wombats perform; Bleachers' singer & musician Jack Antonoff sits in with The 8G Band.

Actor John Cleese; actress Linda Cardellini; politician Barney Frank; Bleachers' singer & musician Jack Antonoff sits in with The 8G Band.

Comic Chelsea Handler; actor John Slattery; Americana musician Shakey Graves performs.

Actress Cobie Smulders; actor Andre Braugher; comic Phil Hanley.

Actress Lily Tomlin; actress Abigail Breslin; comic Chris Distefano performs.

Actor Jack Black; former business executive Carly Fiorina; professional baseball player Pedro Martinez.

Fashion journalist Anna Wintour; country music singer Willie Nelson; indie pop singer Twin Shadow performs.

Actor Josh Hartnett; journalists Mika Brzezinski & Joe Scarborough; blues rock singer Benjamin Booker performs.

Comic Louis C.K.; TV show host Sharon Osbourne; singer-songwriter Joy Williams performs.

Actress Jane Fonda; actress Leslie Jones; actress Kay Cannon.

Actor Matt Dillon; actress Tatiana Maslany; Arcade Fire's Will Butler performs.

Actress Anna Kendrick; actor Thomas Middleditch; from The Best Show - comic Tom Scharpling & musician Jon Wurster.

Actress Mariska Hargitay; actress Chelsea Peretti; musician Father John Misty performs; singer Elle King sits-in with The 8G Band.

Actor Eric Stonestreet; actor Mike Epps; actor & comic Nick Swardson; singer Elle King sits-in with The 8G Band.

Professional basketball player Dwyane Wade; actor Kellan Lutz; R&B singer Allen Stone performs; singer Elle King sits-in with The 8G Band.

Model Heidi Klum; actor & comic Richard Lewis; writer Matt Fraction.

Actress Rose Byrne; Sen. Bernie Sanders (D-Ind.-VT); country singer Brett Eldredge performs; Queens of the Stone Age's drummer Jon Theodore sits in with The 8G Band.

Actress Melissa McCarthy; actor Robert Duvall; author Hanya Yanagihara; Queens of the Stone Age's drummer Jon Theodore sits in with The 8G Band.

Actor Alan Cumming; actress Alicia Vikander; English electronic band Clean Bandit and singer Jess Glynne perform; Queens of the Stone Age's drummer Jon Theodore sits in with The 8G Band.

Actress Elisabeth Moss; TV host Cat Deeley; comic Gina Brillon; Queens of the Stone Age's drummer Jon Theodore sits in with The 8G Band.

Actress Edie Falco; rock band Fall Out Boy performs; Queens of the Stone Age's drummer Jon Theodore sits in with The 8G Band.

Actor & comic Jerry Seinfeld; journalist David Remnick; Queens of the Stone Age's drummer Jon Theodore sits in with The 8G Band.

Actor Taran Killam, actor Hugh Dancy; singer Kacey Musgraves performs; Queens of the Stone Age's drummer Jon Theodore sits in with The 8G Band.

Actress Molly Shannon, actor & rapper T.I.; actor Matt Lucas; Queens of the Stone Age's drummer Jon Theodore sits in with The 8G Band.

Lifestyle expert Martha Stewart; actress Laura Prepon; English musician Jamie xx performs.

Actress Amanda Seyfried; director Judd Apatow; chef Katie Lee.

Actress Mindy Kaling; actor Adam Scott; Swedish singer Tove Lo performs.

Actress Taylor Schilling; singer-songwriter James Taylor chats, then performs.

Actress Maya Rudolph; actor Joe Manganiello; Scottish indie pop band Belle and Sebastian performs.

Actor Colin Farrell; actor Matt Bomer; journalist Maria Bartiromo.

Actor Channing Tatum; actress Laverne Cox; punk rock band Desaparecidos performs; appearance by actress Amy Poehler.

Filmmaker & actor Seth MacFarlane; actress Bella Thorne; actor Greg Poehler.

Actor Michael Douglas; comic Jim Gaffigan; singer-songwriter Nate Ruess (from the band, fun.) performs.

Actor Ben Kingsley; comic Mike Birbiglia; Sen. Lindsey Graham (R-SC).

Actor Paul Rudd; writers James Anderson and Paula Pell.

Actress Amy Schumer; actor Pablo Schreiber; musician Anderson East performs.

TV personality Ryan Seacrest; actress Vanessa Bayer; comic Chris Gethard; Pixies' drummer David Lovering sits in with the 8G Band.

Actor Adam Sandler; comic Margaret Cho; indie rock band Modest Mouse performs; Pixies' drummer David Lovering sits in with The 8G Band.

TV host Rachel Maddow; actress & model Cara Delevingne; pop rock band Neon Trees perform; Pixies' drummer David Lovering sits in with The 8G Band.

Actor Jake Gyllenhaal; actress Ashley Benson; activist duo the Yes Men; Pixies' drummer David Lovering sits in with the 8G Band.

Journalists Matt Lauer and Savannah Guthrie; professional soccer player Carli Lloyd; indie rock band Lord Huron performs; Rage Against the Machine's drummer Brad Wilk sits in with The 8G Band.

Actors Billy Eichner and Julie Klausner; actor Joel Edgerton; R&B band Vintage Trouble performs.

Actor Ed Helms; cartoonist Alison Bechdel; cast of "Fun Home" performs.

Actress Christine Baranski; actor Colin Jost; comic Michael Kosta; Rage Against the Machine's drummer Brad Wilk sits in with the 8G Band.

Actor Miles Teller; actresses Jessica St. Clair & Lennon Parham; French pop singer Christine & The Queens perform; Rage Against the Machine's drummer Brad Wilk sits in with The 8G Band.

Actor Craig Robinson; actor Michael Ian Black; chef Christina Tosi; Rage Against the Machine's drummer Brad Wilk sits in with the 8G Band.

Actor Jason Segel; actor Michael B. Jordan; rapper Big Sean performs.

Reality-TV personalities Ice-T & Coco; actress Lucy Hale; actor Andy Daly; Rage Against the Machine's drummer Brad Wilk sits in with the 8G Band.

Actress Winona Ryder; actor & comic Colin Quinn; indie rock band Beirut performs.

Journalist Anderson Cooper; actress Greta Gerwig; comic Tig Notaro.

Actress Connie Britton; singer Rita Ora; New Zealand psychedelic rock band Unknown Mortal Orchestra performs.

Actress Kristen Wiig; actor Tituss Burgess; author David Simon.

Actor Bill Hader; news anchor Shepard Smith; fictitious 70's soft rock band The Blue Jean Committee performs; The Smashing Pumpkins' drummer Jimmy Chamberlin sits in with The 8G Band.

Actor Zac Efron; actor Joe Piscopo; country singer Chris Stapleton performs; The Smashing Pumpkins' drummer Jimmy Chamberlin sits in with the 8G Band.

Actor Keegan-Michael Key; actor Tony Hale; pop duo MS MR performs; The Smashing Pumpkins' drummer Jimmy Chamberlin sits in with the 8G Band.

Actor Matthew Broderick; actor John Cena; "Impractical Jokers"; The Smashing Pumpkins' drummer Jimmy Chamberlin sits in with the 8G Band.

Actress Tina Fey; singer Nick Jonas performs; drummer Abe Laboriel Jr. sits in with the 8G Band.

Comic Craig Ferguson; actress Gabourey Sidibe; "Last Comic Standing" winner; drummer Abe Laboriel Jr. sits in with the 8G Band.

Actor Neil Patrick Harris; New York Mayor Bill DeBlasio; pop rock band Panic! At the Disco performs; drummer Abe Laboriel Jr. sits in with the 8G Band.

Actor Andy Samberg; professional basketball player Kevin Love; filmmaker M. Night Shyamalan; drummer Abe Laboriel Jr. sits in with the 8G Band.

Actor Jason Sudeikis; actor David Oyelowo; pop duo Twenty One Pilots; drummer Abe Laboriel Jr. sits in with the 8G Band.

Actor Josh Brolin; candidate for Democratic nomination Gov. Martin O'Malley; writer Judd Winick; drummer Abe Laboriel Jr. sits in with the 8G Band.

Actor Elijah Wood; actor Horatio Sanz; singer Jess Glynne performs; drummer Abe Laboriel Jr. sits in with the 8G Band.

Actress & comedian Carol Burnett; actor Colin Hanks; musician Baio performs; drummer Abe Laboriel Jr. sits in with the 8G Band.

Actor Ed Burns; actor Richard Kind; author Judy Blume; drummer Abe Laboriel Jr. sits in with The 8G Band.