Watch James Corden and Justin Bieber Sing the Hits, Talk Underwear in Latest "Carpool Karaoke" (Video)

Justin Bieber Carpool Karaoke H 2015
CBS/Screen grab

James Corden is a Belieber.

"Carpool Karaoke" just keeps getting funnier.

The latest edition saw Justin Bieber go for a ride along with Late Late Show host James Corden. Along with running through some of Bieber's monster hits, the pair also found time to take selfies with randoms and discuss relationships and Bieber's underwear policy, as well as the meaning of "swag."

Corden and Bieber both gave full-throated performances of "Baby," “Boyfriend” and “Where Are U Now,” but beyond the medley of hits, the video showed a playful, relaxed and self-deprecating side of the pop superstar.

The Late Late Show segment has proved to be comedy gold and a viral-video sensation. It all began with Mariah Carey impressing viewers with an impromptu run-through of her vocal range, followed by Jennifer Hudson singing at a drive-thru.

The question now is: After Mariah, JHud and Bieber, whom will Corden pick up for the next session of "Carpool Karaoke"?

Watch the video below.