Gaga and The Late Late Show host did not disappoint, but before the segment, Gaga started off the show as "Lady Haha" by taking Corden's place and supplying plenty of laughs at the expense of Donald Trump.
"Donald Trump is launching a nightly show where he will be streaming his campaign and instead of "little monsters", there are actually monsters."
Gaga went on to further blast the presidential candidate by assuring that "the programming is really going to grab viewers by the balls."
Corden finally arrived on stage, half-dressed and after much encouragement from the audience agreed to have Gaga join the band as she sang "A-Yo" her single from her new album Joanne.
Then it was off to for "carpooling Karaoke" where they launched into a rendition of Ludacris' famous lyrics – "Move bitch, Get out of the way." They enjoyed dancing to "Perfect Illusion" and "Bad Romance" and Gaga even had a turn in the driver's seat where things got a bit dangerous.
"Poker Face and "Born this Way" were also on the menu. And Corden even did a fashion gallery of the singer's past looks.
Things ended with the pair crooning to "A Million Reasons", both sporting the same hat from the cover of her album.
Check out the video below.