The actors and longtime friends swap animal attack stories, face off in an accent competition, and celebrate fellow Welshman Tom Jones.

Ken Jeong joins LINKIN PARK for sing-alongs to their biggest hits.

The Westworld stars trade their horses for wheels and perform “Loop,” a hilarious new version of “Shoop” rewritten for their characters.

The Rocketman stars share some questionable London “facts” while belting along to Bowie, George Michael, and—of course—Elton John.

The pop-punk firestarters compare Canadian and UK slang—and school suspension stories—while rocking The Cure and Shania Twain classics.

Jason takes the Electric Mayhem’s van for a spin while Kermit checks out the gang’s musical skills in a series of auditions.

It's a Y2K bop bonanza for these action stars as Simu draws on his boy-band past for some Backstreet Boys—all leading to a nail-biting finale.

The Broadway stars invent songs for neglected holidays, cram a concert into a teeny-tiny space, and belt out pitch-perfect covers.

A simple car ride becomes a turbulent musical collaboration between the singer and the comic. Will their love of robots and aliens unite them?

The soul superstars harmonize on each other's hits, welcome surprise guests and serenade a laundromat.

Singing through the Marvel Universe.

Which ghosts are the best? The cast of this hit comedy have a lively debate—and spotlight the freestyle skills of their own Utkarsh Ambudkar.

The musical theater aficionados belt out their favorite show tunes, and Seth shows off his horn skills.

Shakira teaches Trevor how to shimmy—and yodel—while giving him a tour of Barcelona.

It's a dream come true for lifelong superfan Sandra when she meets her idols for the first time—and even performs with them.

The four surviving members of this hilarious fictitious girl group receive amazing real-time news while bopping to Dua Lipa and Lisa Loeb.

These Planet of the Apps castmates reunite for an airport drive that turns into a full-on dance party.

They may be stars, but this father-daughter pair clashes over car music like everyone else. For them, it’s The Charlie Daniels Band vs. Cardi B.

Andy, Jorma and Akiva fanboy all over their comedy hero while singing along to his funniest hits. Wait for the blooper reel.

These multitalented kids swap Broadway origin stories and look for summer jobs between Panic! At the Disco and Stevie Nicks jams.

The comedy icon and the hard-rocking sisters jam out to Madonna and Prince — and HAIM hits, of course — on a drive around Los Angeles.

The large-and-in-charge personalities compare their freestyle and free-throw skills in between tunes.

After Joe quizzes Camila on Jonas Brothers trivia, the pair bond over missing their proms—and decide to change that.

The White Lotus stars recall filming their smash show, share some hilarious self-taped auditions, and summon tears for the first Carpool Cry-Off.

Alanis superfan Cara gets to sing along to her hero's greatest hits—and then introduce Alanis to "WAP."