Jon Hamm (Keeping Up with the Joneses (2016)); Colleen Ballinger (Haters Back Off! (2016)). Also: Kings of Leon perform. ...

Jon Hamm (Keeping Up with the Joneses (2016)); Colleen Ballinger (Haters Back Off! (2016)). Also: Kings of Leon perform. ...

Tyler Perry (Tyler Perry's Boo! A Madea Halloween (2016)); Abigail Spencer (Timeless (2016)). Also: Van Morrison performs. ...

Tyler Perry (Tyler Perry's Boo! A Madea Halloween (2016)); Abigail Spencer (Timeless (2016)). Also: Van Morrison performs. ...

Nathan Lane (Broadway play The Front Page, book Naughty Mabel Sees It All); James Marsden (Westworld (2016)); Nikki Glaser performs stand-up. ...

Nathan Lane (Broadway play The Front Page, book Naughty Mabel Sees It All); James Marsden (Westworld (2016)); Nikki Glaser performs stand-up. ...

Kate Hudson (Deepwater Horizon (2016)); David Oyelowo (Queen of Katwe (2016)). Also: De La Soul performs with Estelle and The Roots. ...

Kate Hudson (Deepwater Horizon (2016)); David Oyelowo (Queen of Katwe (2016)). Also: De La Soul performs with Estelle and The Roots. ...

Will Forte (The Last Man on Earth (2015)); Haley Bennett (The Magnificent Seven (2016), The Girl on the Train (2016)). Also: America's Got Talent (2006) winner Grace Vand ...

Will Forte (The Last Man on Earth (2015)); Haley Bennett (The Magnificent Seven (2016), The Girl on the Train (2016)). Also: America's Got Talent (2006) winner Grace Vand ...

Miley Cyrus (The Voice (2011), Crisis in Six Scenes (2016)) is interviewed and performs with The Roots. ...

Miley Cyrus (The Voice (2011), Crisis in Six Scenes (2016)) is interviewed and performs with The Roots. ...

James Spader (The Blacklist (2013)); Mandy Moore (This Is Us (2016)). Also: Jack White (album Acoustic Recordings 1998-2016) is interviewed and performs; Stewart Lindsey ...

James Spader (The Blacklist (2013)); Mandy Moore (This Is Us (2016)). Also: Jack White (album Acoustic Recordings 1998-2016) is interviewed and performs; Stewart Lindsey ...

Meg Ryan (Ithaca (2015)); Nick Kroll and John Mulaney (Broadway play Oh, Hello); magician Dan White performs a card trick. ...

Meg Ryan (Ithaca (2015)); Nick Kroll and John Mulaney (Broadway play Oh, Hello); magician Dan White performs a card trick. ...

Jessica Alba (Mechanic: Resurrection (2016)); Jeff Foxworthy (Jeff Foxworthy and Larry the Cable Guy: We've Been Thinking (2016)) performs stand-up and is interviewed. ...

Jessica Alba (Mechanic: Resurrection (2016)); Jeff Foxworthy (Jeff Foxworthy and Larry the Cable Guy: We've Been Thinking (2016)) performs stand-up and is interviewed. ...

Jerry Seinfeld (Comedians in Cars Getting Coffee (2012)); Seth Rogen (Sausage Party (2016)). Also: Jason Derulo performs with The Roots. ...

Jerry Seinfeld (Comedians in Cars Getting Coffee (2012)); Seth Rogen (Sausage Party (2016)). Also: Jason Derulo performs with The Roots. ...

Aziz Ansari (Master of None (2015)); Carla Gugino (Roadies (2016)); Jeff Dye performs stand-up. Also: Chad Smith sits in with The Roots. ...

Aziz Ansari (Master of None (2015)); Carla Gugino (Roadies (2016)); Jeff Dye performs stand-up. Also: Chad Smith sits in with The Roots. ...

Margot Robbie (Suicide Squad (2016)); Nick Cannon (America's Got Talent (2006), Wild 'N Out (2005)); Martha Stewart (cookbook Vegetables) makes grilled zucchini. ...

Margot Robbie (Suicide Squad (2016)); Nick Cannon (America's Got Talent (2006), Wild 'N Out (2005)); Martha Stewart (cookbook Vegetables) makes grilled zucchini. ...

Blake Lively (Café Society (2016)); Rachel Maddow (The Rachel Maddow Show (2008)). Also: Good Charlotte performs; Ray Parker Jr. sits in with The Roots. ...

Blake Lively (Café Society (2016)); Rachel Maddow (The Rachel Maddow Show (2008)). Also: Good Charlotte performs; Ray Parker Jr. sits in with The Roots. ...

Jim Parsons (The Big Bang Theory (2007)); NFL Defensive Player of the Year J.J. Watt talks about the release of his Reebok signature sneaker. Also: The Avett Brothers per ...

Jim Parsons (The Big Bang Theory (2007)); NFL Defensive Player of the Year J.J. Watt talks about the release of his Reebok signature sneaker. Also: The Avett Brothers per ...

Ricky Gervais (Special Correspondents (2016)); Tony Hale (Veep (2012)); Brian Regan performs stand-up. ...

Ricky Gervais (Special Correspondents (2016)); Tony Hale (Veep (2012)); Brian Regan performs stand-up. ...

Ryan Seacrest discusses hosting the late-night coverage of the upcoming Olympics in Rio and his Olympics-themed sportswear line; Cedric the Entertainer (The Soul Man (201 ...

Ryan Seacrest discusses hosting the late-night coverage of the upcoming Olympics in Rio and his Olympics-themed sportswear line; Cedric the Entertainer (The Soul Man (201 ...