WATCH: James Corden's Newest Carpool Karaoke Features Two Extremely Famous Stars

As well as Gwen Stefani, the TV host picks up two of Hollywood's most famous actors!

We're all familiar with James Corden's famous Late Late Show Carpool Karaoke segment but this one has to be one of the best ones yet!

On this edition of the feature we see No Doubt's Gwen Stefani keep Corden company on his commute to work. The pair sing No Doubt's classic 'Don't Speak' as well as some of Gwen's best solo songs, 'Rich Girl', 'Sweet Escape' and one of her newest tracks 'I Used To Love You'.

James is in awe at how ageless the singer is saying she is like the female version of Benjamin Button and asks what her secret is. She gives an interesting answer to this!

Gwen is said to be a big fan of emojis and during the drive to the CBS studios James asks the songstress to recreate certain faces from the emoji set.

Soon after they drive up to the HOV4 lane which means that there needs to be at least four people in the car to use the carpool lane. To rectify this James calls a friend to see if they'd be available to join him and Gwen on the trip. A minute later the one and only George Clooney gets into the car closely followed by the beautiful Julia Roberts!

The four celebrities continue on their journey helping James get to work. They belt out Stefani's huge hit 'Hollaback Girl' before discussing what a Hollaback Girl actually is. 

James Corden then asks the two actors what their favourite lines were from movies they had acted in. James doesn't impress George Clooney when he quotes Julia Roberts in Notting Hill “I’m just a girl standing in front of a boy, asking him to love her”. George responds: “Now I’m not sure I want you to drive.”

They finish their journey with a passionate rendition of Queen's 'We Are The Champions'.

James tells his passengers to find an Uber to get back home!

Watch it for yourself and enjoy!