Looks like One Direction have found their new fifth member: James Corden.

In what may be his best Carpool Karaoke yet, "The Late Late Show" host, and the guys of 1D cruise around Los Angeles. James actually fits in quite well with the group, harmonizing perfectly, showing off his rap skills and even hitting Zayn's epic high note in "Best Song Ever," that left all the guys a bit stunned.

In between singing some of their hits -- "What Makes You Beautiful," "Story Of My Life" -- and Harry's numerous hair flips, James took the opportunity to play a little game with the guys called "Sleep With, Marry, Cruise."

"One person you've got to go on a cruise with for a year, sharing a room. You spend every minute of every day with them, but you do not sleep with them. One of them you marry, and the other one you just sleep with one time," Corden explained. "So, Niall, your three are Demi Lovato, Selena Gomez and Tina Fey."

Interesting choice of women, especially since there have been all those dating rumors surrounding Niall and Selena. But Niall was quick to answer saying he would "sleep with Tina Fey, marry Gomez and go on a cruise with Demi Lovato."

But the highlight of the entire 13 minute video, besides James remixing "Drag Me Down" with a rap verse, had to be when "The Late Late Show" host decided to turn One Direction into a "proper boy band," giving them matching denim shirts and a dance routine for their fan-favorite song "No Control."

The fivesome then proceeded to make a "music video" for the song which is all sorts of hysterical and shows off their synchronized dance moves. At the end of the song, James asks: "I think you should rethink this hiatus because it feels right, doesn't it?"

Why yes, James, it does.