They also compare goodie bags from the Grammys in which Bieber pulls out a Rolex, diamond bracelet, headphones, mini iPad and a private plane trip to the Maldives.
Meanwhile Corden reveals a Danielle Steel book, ChapStick, map of LA and a candle.
Both come together at the end for a special rendition of the Late Late Show theme song.
People took to Twitter to share their love for the clip, with many posting positive comments.
James Corden and Justin Bieber are the ultimate duo honestly