Margot Robbie (The Legend of Tarzan (2016)); comic Jim Jefferies (Killing Hasselhoff (2017)). Also: Flo Rida and Jason Derulo perform. ...

Eric Stonestreet (Modern Family (2009)); Nia Long (Uncle Buck (2016)). Also: AlunaGeorge perform. ...

Kevin Nealon (Popstar: Never Stop Never Stopping (2016)); record producer DJ Khaled. Also: Christina Aguilera performs. ...

Bill Hader (Finding Dory (2016)); Maria Bamford (Lady Dynamite (2016)). Also: DNCE perform. ...

Liev Schreiber (Ray Donovan (2013)); Carla Gugino (Wayward Pines (2015) and The Space Between Us (2017)). Also: The Head and the Heart perform. ...

Jeff Bridges (Hell or High Water (2016)); Chad Johnson (The Bachelorette (2003)). Also: Garbage perform. ...

Mindy Kaling (The Mindy Project (2012)); Ben Mendelsohn (Bloodline (2015) and Una (2016)). Also: Meghan Trainor performs. ...

Kevin Hart (Central Intelligence (2016)); Constance Zimmer (UnREAL (2015)). Also: Fitz and The Tantrums perform. ...

Anthony Anderson (Black-ish (2014)); sports columnist Bill Simmons. Also: Train perform. ...

Bill Murray, Dan Aykroyd, Ernie Hudson and Annie Potts (Ghostbusters (1984)); Melissa McCarthy, Kristen Wiig, Kate McKinnon and Leslie Jones (Ghostbusters (2016)). Also: ...

Will Arnett (Popstar: Never Stop Never Stopping (2016) and Teenage Mutant Ninja Turtles: Out of the Shadows (2016)). Also: Snoop Dogg visits and performs. ...

Megan Fox (Teenage Mutant Ninja Turtles: Out of the Shadows (2016)); Thomas Middleditch. Also: Josh Abbott Band performs. ...

Presidential candidate Sen. Bernie Sanders; Kyle Chandler; chefs Frank Falcinelli and Frank Castronovo. ...

Presumptive Republican nominee Donald Trump. Also: Belly performs. ...

Colin Farrell (The Lobster (2015)); Brad Paisley visits and performs with Demi Lovato. ...

Johnny Depp (Alice Through the Looking Glass (2016)). Also: Pink performs and is interviewed. ...

Bryan Cranston (All the Way (2016)); Anika Noni Rose (Roots (2016)). Also: Joanna Newsom performs. ...

NBA legend Magic Johnson; Billboard Music Awards co-hosts Ciara and Ludacris. Also: Ariana Grande performs. ...

Dax Shepard (CHIPS (2017)); TV hostess Katie Nolan. Also: Macklemore and Ryan Lewis perform. ...

Kerry Washington and Shonda Rhimes (Scandal (2012)); the NFL's Rob Gronkowski. Also: Goo Goo Dolls perform. ...

Alec Baldwin (Back in the Day (2016) and Match Game (2016)); Riley Keough (The Girlfriend Experience (2016)). Also: Cole Swindell performs. ...

Russell Crowe (The Nice Guys (2016)); Mike Birbiglia (Don't Think Twice (2016)). Also: Dead and Company perform. ...

Ryan Gosling (The Nice Guys (2016)); animal expert Dave Salmoni. Also: Flo Rida and Florida Georgia Line perform as Flo Rida Georgia Line on Mash Up Monday. ...

Rob Lowe (The Grinder (2015)); Chloe Bennet (Agents of S.H.I.E.L.D. (2013)). Also: Bebe Rexha performs. ...

Julie Bowen (Modern Family (2009)); Lucy Boynton (Sing Street (2016)). Also: Florida Georgia Line perform. ...

Comic Adam Carolla. Also: The Avett Brothers perform. ...

Dr. Mehmet Oz (The Dr. Oz Show (2009)); Emily Deschanel (Bones (2005)); Mashup Monday features Of Monsters and Men and Men at Work. ...

Chadwick Boseman (Captain America: Civil War (2016)); comedian Chris Hardwick (Me Him Her (2015) and Sanjay and Craig (2013)); musician Robert Randolph performs; the firs ...

Johnny Knoxville (Elvis and Nixon (2016)). Also: John Mellencamp talks and performs. ...

Kate Hudson (Mother's Day (2016)); Evan Peters (Elvis and Nixon (2016) and X-Men: Apocalypse (2016)). Also: James Day performs. ...

John Stamos (Grandfathered (2015)); Mercedes Mason (Fear the Walking Dead (2015)). Also: Iggy Pop performs. ...

Jordan Peele and Keegan-Michael Key (Keanu (2016) and Bob's Burgers (2011)); Glen Powell (Scream Queens (2015) and Everybody Wants Some (2016)). Also: M83 perform. ...