The Late Late Show: Carpool Karaoke Season 4: Episode Guide & Ratings

During their Carpool Karaoke trip around Los Angeles, James Corden and Christina Aguilera sing her new single "Fall In Line."

James and Adam Levine cruise around Los Angeles singing some of Maroon 5's biggest songs before Adam proves to James he can balance anything on his face, and the two compete in a race on a proper track.

James and Shawn Mendes hop in the car for a commute across Los Angeles singing some of Shawn's classics and new music. Shawn and James also debate the merits of buying a pair of Justin Bieber's underwear and dive into Shawn's deep love for "Harry Potter" before practicing some road rage technique and hitting the ice for some hockey.

The legendary crooner visited his childhood home and dissected the band's iconic fashion in the late-night host's special London edition of 'The Late Late Show.'

James and Ariana Grande give each other a lift across Los Angeles, singing songs off her new album "Sweetener," channeling some Celine Dion and settling the score on whether Ariana is physically carried wherever she goes (she isn't).

James Corden and Michael Bublé carpool through Los Angeles singing both Michael's new music and his classic songs and have a emotional conversation about the devastation of a cancer diagnosis, and how you can help find a cure.

In a bind, James Corden calls on Barbra Streisand for a ride to work. In addition to singing her classics and music from her new album, "Walls," Barbra demonstrates how she failed her driving test three times, and how she was able to get Apple's Siri to pronounce her name correctly.

James Corden links up with Quavo, Offset and Takeoff - the trio that make up Migos - for a drive through Los Angeles singing their biggest songs. James also apologizes for contributing to the destruction of the dab, and Migos uses some of the large amount of cash they brought for the ride for a quick shopping spree.

Cardi B hops in the car with James Corden for a Carpool Karaoke through Los Angeles singing her biggest songs, discussing growing up in the Bronx and the subtle art of ASMR. And James encourages Cardi to get behind the wheel and give driving a chance, which he learns she doesn't really do for good reason.

James Corden and Michael Buble kick off a holiday mashup of "Christmas (Baby Please Come Home)" with the musicians who joined James for Carpool Karaoke in 2018, including Migos, Cardi B, Paul McCartney, Shawn Mendes, Ariana Grande, Barbra Streisand, Adam Levine and Christina Aguilera.