Seth Meyers hosts a late-night talk show. ...

Seth Meyers hosts a late-night talk show. ...

Seth Meyers hosts a late-night talk show. ...

Taylor Swift (The Giver (2014)); Boy George; Derek Waters (Hits (2014)). ...

Mickey Rourke (Sin City: A Dame to Kill For (2014)); writer Matthew Weiner; radio hosts Roger Bennett and Michael Davies. ...

Meredith Vieira (The Meredith Vieira Show (2014)); Dane DeHaan (The Amazing Spider-Man 2 (2014)). Also: Magic Man perform. ...

Jeff Bridges; Riki Lindhome and Kate Micucci. Also: Strand of Oaks perform. ...

Michael Fassbender; Allison Tolman; Joshua Ferris. ...

Clive Owen; Sarah Paulson. Also: Chase Rice performs. ...

Daniel Radcliffe; Neal Brennan; Morgan Spurlock. ...

Joan Rivers; Josh Meyers. Also: Rixton performs. ...

Ethan Hawke; Megyn Kelly; Paula Pell. ...

Chris Pratt; Laverne Cox. Also: Big Data and Joywave perform. ...

Maggie Gyllenhaal (River of Fundament (2014)); Lee Pace (Guardians of the Galaxy (2014)); Scott Aukerman. ...

Carson Daly; Penn and Teller. Also: Christina Perri performs. ...

Hank Azaria; Mary Lynn Rajskub; Brendan Gleeson. ...

Ricky Gervais; Zac Posen. Also: G-Eazy performs. ...

Kate Hudson; journalist David Remnick. ...

Zach Braff; Jack Antonoff. Also: Bleachers perform. ...

Julie Bowen; Brett Ratner; Ben Kronberg. ...

Regis Philbin; John Henson (Wipeout (2008)). Also: Broods perform. ...

Anna Paquin; comic Marc Maron; chef Elizabeth Karmel. ...

Kate McKinnon; Pete Rose. Also: Betty Who performs. ...

Keri Russell; Kevin Millar and Sean Casey; Michelle Wolf. ...

Taye Diggs; Andy Serkis. Also: Neon Trees perform. ...

Gary Oldman; Andy Cohen; the Kratt Brothers; artist Jeff Koons. ...

Brian Williams; Chrissy Teigen. Also: Charli XCX performs. ...

Al Roker; Jenny Slate; Paul Haggis. ...

Mike Myers; Shep Gordon; Whitney Cummings. Also: Tove Lo performs. ...

Robert Pattinson; Gabrielle Union; David Wain. ...

Wanda Sykes; Piper Perabo. Also: Stromae performs. ...

Gerard Butler; Tony Shalhoub; Myq Kaplan. ...