You'll never guess which A-lister just filmed Carpool Karaoke with James Corden...
Lady Gaga is the latest celebrity to film with James Corden for his hilarious Carpool Karaoke segment.
The 30-year-old US superstar has shared an Instagram snap of herself and James after the recording, with the comedian looking particularly in awe.
Clad in a shimmering gold top with a bow tie, Lady Gaga also donned a pale pink stetson... matched by James himself.
She wrote: "Had a lil fun with @j_corden today coming soon! #JOANNE #CARPOOLKARAOKE #MILLIONREASONS #PERFECTILLUSION."
James, who features the fun segment on his popular The Late Late Show, retweeted her post in a seriously excited manner.
Lady Gaga is currently in the midst of promoting her forthcoming fifth studio album Joanne, from which she has so far released two tracks - Perfect Illusion and Million Reasons.
The pink stetson is part of her aesthetic for the album, as she has been wearing it a lot in the run-up to the album's release later this month.
She also wears it on the cover of the album, which has been named Joanne in honour of her auntie.
Lady Gaga follows in the footsteps of a large number of stars who have appeared in Carpool Karaoke, including the likes of Britney Spears, One Direction, Mariah Carey, Adele and even the First Lady Michelle Obama.