George Clooney and Julia Roberts Accompany James Corden and Gwen Stefani on The Carpool Karaoke Ride

Gwen Stefani accompanied James Corden on his ride to work in the most recent episode of The Late Late Show's Carpool Karaoke portion.

They commenced the journey with her cheerfully singing "Don't speak" by her band "No Doubt". Then they revisited a couple of her popular singles such as 'The Sweet Escape', "Used to Love You" and "Rich Girl". Gwen also taught James the hardest snippet of her track "The Sweet Escape", 'sour milk'. Moreover, she and Corden were also seen indulging in a game of sorts where she was having to enact images.

The car ride went smoothly without any hassles up until the point where they were in need for two additional co-passengers. The need arose as they needed to be able to use the HOV 4 carpool lane. Corden was then seen dialling George Clooney, who claimed to be doing nothing. Clooney went on to invite a co-star in the motion picture "Money Monster" and an Oscar, Julia Roberts.

The fantastic four then went on to sing "Hollaback Girl" and "We are the Champions" by Queen. What kick-started as a drive with James and Gwen alone soon turned out to be an even more entertaining ride. George Clooney and Julia Roberts were such good sports throughout their stint. However, George seemed to have been extra passionate about the song "Hollaback Girl". His facial expressions were spot on and deemed fit for the song and the mood. Meanwhile, Julia and Gwen were seen maintaining a refreshing demeanour throughout the song. The group seemed to have enjoyed the ride and so did the viewers who got to witness them in action.

It seems fair to crown them the "Fantastic Four".