Hootie sing-alongs take a competitive turn when Darius and Anthony set out to break a surprising Guinness world record.

Robin, Nicole and Ken take a break from evaluating masked celebrities and force everyday citizens to perform for them.

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

Retta invites Christina and Mae to treat themselves on a decked-out spa bus in between passionate sing-alongs to Hamilton and Heart.

Jay’s a hip-hop guy and Seal loves soul and standards, but when it comes to serenading couples, it has to be “Kiss From a Rose."

It’s a new kind of sibling rivalry when Zooey and Emily go head-to-head with Jonathan and Drew to portray one another in a musical spectacular.

The alt-rock icons take the funnyman on a trip from their first hits to covers of TLC and Toto—and swap some questionable memorabilia.

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