1: Late Show with David Letterman Lena Dunham; Max Greenfield; Brandy Clark

2: Late Show with David Letterman Joel McHale; Marv Albert; Washed Out

3: Late Show with David Letterman Scarlett Johansson; John Grant

4: Late Show with David Letterman Anderson Cooper; Bobby Moynihan; Will Hoge

5: Late Show with David Letterman Mindy Kaling; Jeff Altman; Red Fang

6: Late Show with David Letterman Bill Cosby; Sleigh Bells

7: Late Show with David Letterman Michael Strahan; Jennifer Nettles

8: Late Show with David Letterman Kevin Hart; Mo Rocca; The Orwells

9: Late Show with David Letterman Brian Williams; Rosanne Cash

10: Late Show with David Letterman Don Cheadle; Myq Kaplan; Roadkill Ghost Choir

11: Late Show with David Letterman Andy Samberg; Michael B. Jordan; Ellie Goulding

12: Late Show with David Letterman Martin Scorsese; Allison Williams; Cults

13: Late Show with David Letterman Rachel Maddow; Spike Jonze; No Age

14: Late Show with David Letterman Kevin Bacon; Pat McGann; Devon Avenue

15: Late Show with David Letterman Louis C.K.; B.J. Ganem; Artic Monkeys

16: Late Show with David Letterman Eric Stonestreet; Nick Goepper; Bastille

17: Late Show with David Letterman Drew Brees; B.J. Novak; Against Me!

18: Late Show with David Letterman Dr. Phil McGraw; Danny Koker; Dum Dum Girls

19: Late Show with David Letterman Bill Murray; Eagulls

20: Late Show with David Letterman Will Arnett; Broken Bells

21: Late Show with David Letterman George Clooney; Sting

22: Late Show with David Letterman Matt Damon; Lenny Kravitz

23: Late Show with David Letterman Patrick Stewart; The Flaming Lips

24: Late Show with David Letterman Regis Philbin; Ms. Lauryn Hill

25: Late Show with David Letterman Kevin Spacey, Amber Heard, a Top Ten List presented by the cast of

26: Late Show with David Letterman Sage Kotsenburg, Kate Mara

27: Late Show with David Letterman Kaitlyn Farrington, Lupita Nyong'o, Little Dragon

28: Late Show with David Letterman Keri Russell, Terry Fator

29: Late Show with David Letterman Pauley Perrette, Jeff Caldwell, Lake Street Dive

30: Late Show with David Letterman Kaley Cuoco-Sweeting, Dale Earnhardt, Jr., The Fray

31: Late Show with David Letterman Olympic Gold Medalist Ted Ligety, Kat Dennings, Lo-Fang

32: Late Show with David Letterman Meredith Vieira, Band of Horses

33: Late Show with David Letterman Stupid Human Tricks, Simon Helberg, Young the Giant

34: Late Show with David Letterman Jack (Jungle) Hanna, Jake Johannsen

35: Late Show with David Letterman Zach Braff, Sgt. Brendan Marrocco & Dr. Andrew Lee, Future Islands

36: Late Show with David Letterman Michael Keaton, Phantogram

37: Late Show with David Letterman Tom Selleck, Carrie Brownstein, David Nail

38: Late Show with David Letterman Tom Brokaw, Andrew Hadlock, Bob Mould

39: Late Show with David Letterman Mary-Louise Parker, Lenny Marcus, Joan Jett & the Blackhearts

40: Late Show with David Letterman Sen. John McCain, Little Mix

41: Late Show with David Letterman Jason Bateman, Miles Teller, Gary Allan

42: Late Show with David Letterman Sylvester Stallone, Theo James, Ledisi

43: Late Show with David Letterman Bryan Cranston, Melissa Rauch, Le1f

44: Late Show with David Letterman Bill O'Reilly, Nick Griffin, the Dough Rollers

45: Late Show with David Letterman Jimmy Carter

46: Late Show with David Letterman Emma Watson, Nick Offerman, a musical tribute to Johnny Cash

47: Late Show with David Letterman Peter Dinklage, Hari Kondabolu, Sage the Gemini

48: Late Show with David Letterman Cobie Smulders, Nick Cannon, Manchester Orchestra

49: Late Show with David Letterman Kristin Chenoweth, Amy Schumer, Johnnyswim

50: Late Show with David Letterman Bill Murray, Martha Stewart, Lady Gaga

51: Late Show with David Letterman Johnny Depp, Kevin Drew

52: Late Show with David Letterman Billy Crystal, Tony Hale, Liv Warfield

53: Late Show with David Letterman Rob Lowe, Brooklyn Decker, London Grammar

54: Late Show with David Letterman Lindsay Lohan, Jamie Edwards, Real Estate

55: Late Show with David Letterman Courteney Cox, Jimmie 'J.J.' Walker, Christina Perri

56: Late Show with David Letterman Stephen Colbert, Robin Roberts, Kelis

57: Late Show with David Letterman Sally Field, Timothy Simons, Needtobreathe

58: Late Show with David Letterman Neil Patrick Harris, Sarah Hyland, Ray LaMontagne

59: Late Show with David Letterman Piedmont Bird Callers, Michael J. Fox, Naughty Boy

60: Late Show with David Letterman Joel McHale, Vera Farmiga, Aloe Blacc

61: Late Show with David Letterman Lucy Liu, Ziggy Marley

62: Late Show with David Letterman Kiefer Sutherland, Adam Resnick, Benjamin Booker

63: Late Show with David Letterman Louis C.K., a performance from the Broadway cast of Rocky

64: Late Show with David Letterman Don Rickles, Carmen Lynch, the Ghost of a Saber Tooth Tiger

65: Late Show with David Letterman Shailene Woodley, Peyton Manning

66: Late Show with David Letterman Jon Cryer, Elizabeth Olsen, Foster the People

67: Late Show with David Letterman Mariah Carey, Rick Harrison

68: Late Show with David Letterman James Franco, Idina Menzel, a performance by the Broadway cast of 'If/Then'

69: Late Show with David Letterman Nathan Fillion, Tom Dreesen, Hunter Hayes

70: Late Show with David Letterman Harry Connick Jr., Jesse Eisenberg, the Black Keys

71: Late Show with David Letterman Jim Parsons, Julie Chen, Hozier

72: Late Show with David Letterman Barbara Walters, Elle Fanning, Randy Houser

73: Late Show with David Letterman Adam Sandler, Thomas Haden Church

74: Late Show with David Letterman Lea Michele, Andy Kindler, Chromeo

75: Late Show with David Letterman Jack Hanna, Stephen Malkmus & the Jicks

76: Late Show with David Letterman Kid scientists, Sarah Silverman, We Are Scientists

77: Late Show with David Letterman Sgt. Kyle J. White, Judy Greer, Dierks Bentley

78: Late Show with David Letterman Donald Trump, Indianapolis 500 winner Ryan Hunter-Reay, Elizabeth Cook

79: Late Show with David Letterman Martin Short, John Oliver, Spanish Gold

80: Late Show with David Letterman Anderson Cooper, Victor Espinoza, the Afghan Whigs

81: Late Show with David Letterman Hugh Jackman, Joe List, Elvis Costello

82: Late Show with David Letterman Kelsey Grammer, Willie Nelson

83: Late Show with David Letterman Dave Chappelle, Laura Prepon, a Top Ten List presented by Miss USA, the Orwells

84: Late Show with David Letterman Christopher Walken, Janelle Monae, Tatiana Maslany, Miss USA 2014

85: Late Show with David Letterman Regis Philbin, Paul Morrissey, First Aid Kit

86: Late Show with David Letterman Susan Sarandon, Whitney Cummings, Angel Olsen, David Sanborn

87: Late Show with David Letterman Olivia Wilde, Shep Gordon, Empires

88: Late Show with David Letterman Dana Carvey, Ellie Kemper, Sam Smith

89: Late Show with David Letterman Paul Rudd, Jeff Altman, John Doe

90: Late Show with David Letterman Adam Levine, Gen. Frank J. Grass, Broken Bells

91: Late Show with David Letterman Melissa McCarthy, Rachelle Lefevre, Phish

92: Late Show with David Letterman Mark Wahlberg, Ben Falcone, Hurray for the Riff Raff

93: Late Show with David Letterman Mark Ruffalo, Former Marine Lance Cpl. William 'Kyle' Carpenter

94: Late Show with David Letterman Halle Berry, Steve Young, War on Drugs

95: Late Show with David Letterman Joan Rivers, Capital Cities

96: Late Show with David Letterman Lizzy Caplan, Sleeper Agent

97: Late Show with David Letterman Michael Douglas, Paul Morrissey, Kiesza

98: Late Show with David Letterman Kurt Russell, Hannibal Buress, Sturgill Simpson

99: Late Show with David Letterman Jason Segel, Liv Tyler, Trampled By Turtles

100: Late Show with David Letterman Emma Stone, Nathan Fielder, American Authors

101: Late Show with David Letterman Colin Firth, Tommy Johnagin, EMA

102: Late Show with David Letterman Jeff Daniels, Norah O'Donnell, A Special Performance of 'MacArthur Park'

103: Late Show with David Letterman Ricky Gervais, Taylor Schilling, Eli Young Band

104: Late Show with David Letterman Eric Stonestreet, Brody Dalle

105: Late Show with David Letterman Staff Sgt. Ryan Pitts, Sharon Van Etten

106: Late Show with David Letterman John C. Reilly, Rachelle Lefevre, Conor Oberst

107: Late Show with David Letterman Chris Pratt, Rodrigo y Gabriela

108: Late Show with David Letterman Zoe Saldana, Crash

109: Late Show with David Letterman Julia Louis-Dreyfus, Simon Amstell, David Gray

110: Late Show with David Letterman Bruce Willis, the Gaslight Anthem

111: Late Show with David Letterman Joseph Gordon-Levitt, Novak Djokovic, Robby Johnson

112: Late Show with David Letterman Kathy Griffin, Ken Burns, Jeremy Messersmith

113: Late Show with David Letterman Serena Williams, Chadwick Boseman, Echo & the Bunnymen

114: Late Show with David Letterman Michael Cera, dock diving dogs, Lyle Lovett

115: Late Show with David Letterman Howie Mandel, EMA

116: Late Show with David Letterman James McAvoy, Chris Russo, The Last Internationale

117: Late Show with David Letterman Mike Myers, Bonnie McFarlane, John Fullbright

118: Late Show with David Letterman Luke Wilson, Julie Chen, Lee Brice