Maya Rudolph & HAIM

E1

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.

Keegan-Michael Key & Rob Gronkowski

E2

When Gronk decides to try a career in music, Keegan trains with gruelling vocal warmups and a medley of timeless sports anthems.

Patricia Arquette & David Arquette

E3

The superstar siblings relive childhood battles and compare horror movie screams in between sing-alongs to Violent Femmes and Steppenwolf.

The Sharks of Shark Tank

E4

Mark, Robert, Daymond and Kevin take their minds off business by singing Taylor Swift, but before you know it, they're competing again.