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

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

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

The Captain Marvel stars invent a thrifty Infinity Stone, cop to questionable on-set behavior, and sing about Sam's raspberry beret.

Travis and KD reveal their guilty pleasures, debate Domino's and Thanos' superpowers, and go from "Super Freak" to "SICKO MODE."

Ever wondered where "alright, alright, alright" comes from? Wonder no more, because Matthew is ready to give Snoop the scoop.

When they're not swapping injury stories, this trio of extreme athletes tackle a new competitive sport: Eddie Vedder impressions.

This hilarious duo's ride has everything: crime, time travel, a magic carpet ride, and one life beginning as another ends. Also, Dr. Drew!

Sonequa, Anthony, Doug, and Mary nerd out about their Trekker fanbase between singalongs to David Bowie, Ed Sheeran…and Rent.

Gisele used Boyz II Men songs to help learn English. Now, she fulfills her dream of becoming their duet partner.

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

The supermodel besties let us in on their secret handshake—and then subject their friendship to a revealing lie detector test.

Rashida quizzes her legendary dad on working with icons like Sinatra and Michael Jackson—while they sing Q's hits.

Equipped with a big gold buzzer to recognize a job well done, Tyra tests Yachty's skills at runway walking, flirting, and duets.

A single vehicle winds up playing host to a dozen of the WWE's biggest (and we mean BIGGEST) stars on musical adventures.

The Hollywood super-couple pays their love forward by setting up a dating game show in their backseat and crashing a wedding.

After testing Bebe's massive vocal range, Wiz decides to teach her to drive. Wanna guess which two colors his test rides come in?

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

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.