Lady Gaga (American Horror Story (2011)); mixed martial artist Ronda Rousey. Also: Hailee Steinfeld performs. ...

Hugh Jackman (Pan (2015)); Shaquille O'Neal (book Little Shaq). Also: Talib Kweli performs with Rapsody (Rapsody) and The Roots; Warren Haynes sits in with The Roots. ...

Hugh Jackman (Pan (2015)); Shaquille O'Neal (book Little Shaq). Also: Talib Kweli performs with Rapsody (Rapsody) and The Roots; Warren Haynes sits in with The Roots. ...

Seth Rogen (Steve Jobs (2015)); New York Giants wide receiver Victor Cruz. Also: Chvrches performs. ...

Seth Rogen (Steve Jobs (2015)); New York Giants wide receiver Victor Cruz. Also: Chvrches performs. ...

Miley Cyrus (Saturday Night Live: Miley Cyrus (2015), album Miley Cyrus and Her Dead Petz); Sam Rockwell (Broadway play Fool for Love); chef Danny Bowien (The Mission Chi ...

Miley Cyrus (Saturday Night Live: Miley Cyrus (2015), album Miley Cyrus and Her Dead Petz); Sam Rockwell (Broadway play Fool for Love); chef Danny Bowien (The Mission Chi ...

Julianna Margulies (The Good Wife (2009)); Sirius XM radio host Andy Cohen (Radio Andy); experts from Ask This Old House (2002) present home improvement advice. Also: Joh ...

Julianna Margulies (The Good Wife (2009)); Sirius XM radio host Andy Cohen (Radio Andy); experts from Ask This Old House (2002) present home improvement advice. Also: Joh ...

Julianne Moore (Freeheld (2015)); Mark-Paul Gosselaar (Truth Be Told (2015)). Also: DNCE performs. ...

Julianne Moore (Freeheld (2015)); Mark-Paul Gosselaar (Truth Be Told (2015)). Also: DNCE performs. ...

Rob Lowe (The Grinder (2015)); Kat Dennings and Beth Behrs (2 Broke Girls (2011)). Also: Hozier performs. ...

Rob Lowe (The Grinder (2015)); Kat Dennings and Beth Behrs (2 Broke Girls (2011)). Also: Hozier performs. ...

Olivia Wilde (Meadowland (2015)); Fred Savage (The Grinder (2015)). Also: Walk the Moon performs. ...

Olivia Wilde (Meadowland (2015)); Fred Savage (The Grinder (2015)). Also: Walk the Moon performs. ...

Joseph Gordon-Levitt (The Walk (2015)); Chris Hardwick (@midnight (2013)). Also: Big Grams performs; Micky Dolenz sits in with The Roots. ...

Joseph Gordon-Levitt (The Walk (2015)); Chris Hardwick (@midnight (2013)). Also: Big Grams performs; Micky Dolenz sits in with The Roots. ...

James Spader (The Blacklist (2013)); Andrew Rannells (The Intern (2015)); Brian Regan performs stand-up. ...

James Spader (The Blacklist (2013)); Andrew Rannells (The Intern (2015)); Brian Regan performs stand-up. ...

Anne Hathaway (The Intern (2015)); Anthony Anderson (Black-ish (2014)). Also: A Great Big World performs. ...

Anne Hathaway (The Intern (2015)); Anthony Anderson (Black-ish (2014)). Also: A Great Big World performs. ...

Ryan Reynolds (Mississippi Grind (2015)); Republican presidential candidate Carly Fiorina. Also: Shawn Mendes performs. ...

Ryan Reynolds (Mississippi Grind (2015)); Republican presidential candidate Carly Fiorina. Also: Shawn Mendes performs. ...

Keith Richards (album Crosseyed Heart, Keith Richards: Under the Influence (2015)); Emma Roberts (Scream Queens (2015)); Nate Bargatze performs stand-up. ...

Keith Richards (album Crosseyed Heart, Keith Richards: Under the Influence (2015)); Emma Roberts (Scream Queens (2015)); Nate Bargatze performs stand-up. ...

Democratic presidential candidate Hillary Clinton; Dakota Johnson (Black Mass (2015)). Also: Fetty Wap performs with Monty and The Roots. ...

Democratic presidential candidate Hillary Clinton; Dakota Johnson (Black Mass (2015)). Also: Fetty Wap performs with Monty and The Roots. ...

Robert De Niro (The Intern (2015)); Ariana Grande discusses the launch of her perfume Ari. Also: Duran Duran performs. ...

Robert De Niro (The Intern (2015)); Ariana Grande discusses the launch of her perfume Ari. Also: Duran Duran performs. ...

Benicio Del Toro (Sicario (2015)); Jessica Alba discusses her Honest Company's launch of Honest Beauty skin care and makeup. Also: Miguel performs. ...

Benicio Del Toro (Sicario (2015)); Jessica Alba discusses her Honest Company's launch of Honest Beauty skin care and makeup. Also: Miguel performs. ...

Republican presidential candidate Donald Trump; Terrence Howard (Empire (2015)). Also: Pharrell Williams performs atop the Tonight Show marquee. ...