Guess who's joining James Corden for Carpool Karaoke?

With her fifth album due out later this month, Lady Gaga's been busy with the intense promo including the release of her 'Perfect Illusion' music video, a mini-tour across dive bars in the US and the surprise release of new track 'Million Reasons'. But the 'Perfect Illusion' singer has just unleashed another major surprise this week; she's heading to James Corden's Carpool Karaoke. Taking to Instagram, Gaga shared a photo alongside The Late Show host with the caption, "Had a 'lil fun with @j_corden today! Coming soon!"

Had a lil fun with @j_corden today! coming soon! #JOANNE #CARPOOLKARAOKE #MILLIONREASONS #PERFECTILLUSION

A photo posted by Lady Gaga (@ladygaga) on

The pair were sporting matching pink cowboy hats in honour of her upcoming album, Joanne. It seems we'll have to wait to find out when the pair will be singing together, but we can't wait. Gaga will become the latest pop diva to showcase her singing skills following Britney Spears, Adele and Sia who previously took to the show. Lady Gaga's fifth album is due out October 21, you can watch the 'Perfect Illusion' music video below: More stories: Table for Two | ‘My stepdad would get on better with him’ Gay love in America’s Bible Belt explored in new LGBT series ‘Feral’ – WATCH