The Late Late Show: Carpool Karaoke Season 1: Episode Guide & Ratings

During a drive around Los Angeles, James and Mariah Carey pass the time singing some rather familiar songs, including "Always Be My Baby."

James and Jennifer Hudson make the most of their drive to work singing a few classic tunes, stopping at her Hollywood Walk of Fame star and ordering from a drive-thru.

James and Justin Bieber carpool through Los Angeles singing some of Justin's classic songs, and James challenges him to finish a Rubik's Cube.

James and Iggy Azalea carpool through Los Angeles singing some of her classic songs and stop in to a bridal shop to try on wedding dresses ahead of Iggy's nuptials.

James and rock legend Rod Stewart carpool through Los Angeles singing some of his classic songs and surprise guest A$AP Rocky joins in for his hit, Everyday.

James and music icon Stevie Wonder carpool through Los Angeles singing some of his classic songs and Stevie suggests he and James start a group called the Wondercats.

James and Jason Derulo carpool through Los Angeles singing some of his hit songs before Jason gives James a dance tutorial and the two take over a star tour.

James Corden & Justin Bieber reunite to carpool through Los Angeles singing some of Justin's new hits, as well as classics like Alanis Morissette's "Ironic."

James and Carrie Underwood carpool through Los Angeles singing some of her popular hits, and a Wham! classic, and the two make a stop for some cowboy boots, hats and vests.

James Corden has Niall Horan, Louis Tomlinson, Liam Payne and Harry Styles join him for a carpool through Los Angeles singing some of their biggest songs and introducing a little choreography.

James Corden and Reggie Watts kick off a Christmas edition of Carpool Karaoke singing "Joy to the World" with One Direction, Stevie Wonder, Iggy Azalea, Rod Stewart, Carrie Underwood, Jason Derulo and Justin Bieber.