It has to be the most star studded Carpool Karaoke so far.
Gwen and James blitz through a medley of her songs from 'Don't Speak' to 'Sweet Escape' to 'Hollaback Girl' and then an emoji challenge and it's a hoot.
Unfortunately, they hit something called a HOV 4 Highway, which is a carpool that requires you to have three passengers to use the lane.
So, what do you do? You check your contacts and give a couple of solid gold Hollywood A-Listers the ride!
