Craig Kilborn's run
- Actor Allusion: His "In the News" segment was reminiscent of The Daily Show.
- The Pete Best: For the second time in two shows; the first being The Daily Show.
James Corden's run
- Actor Allusion: When Chris Pine was a guest, James made several references to Into the Woods and how, during production, Chris would hang out with a certain future talk show host.
- Creator Backlash: The Foo Fighters have been quite open about disliking their time on Carpool Karaoke, saying that they were completely exhausted at having to spend hours upon hours in the car singing songs on a loop only to find out that there was more location shooting to do once they finally got out of the car.
- Follow the Leader: Corden's run is heavily influenced by Jimmy Fallon's Late Night and The Tonight Show, plus The Graham Norton Show.
- I Want You to Meet an Old Friend of Mine: Naturally, several former co-stars and acquaintances of James have made appearances on the show. Anna Kendrick, in particular, has put in a number of appearances in addition to co-starring with James in Into the Woods and Trolls.