The talk-show host picked up the Grammy award-winning singer as they drove around LA, belting out some Jennifer’s greatest hits.
Sitting shotgun the two sang Jennifer’s If This Isn’t Love and her latest collaboration with Iggy Azalea Trouble.
The real mischief began when James admitted he was late and still had to grab some food.
“I’m not going to change my routine just because I’m late,” he remarked as they pulled up to an Astro Burger drive-through.
The 36-year-old rolled down his window to order, but was delighted when Jennifer sang out his order.
“Ooh, yes! Cheeseburger!”
“Don’t forget my diet coke!” The Dreamgirls starlet added to the order.
In a touching full circle moment, the star admitted that before she was Academy and Grammy Award-winner she used to work at McDonald’s!
It was clear that James and Jennifer had a hoot together and thoroughly got along. James even managed to get singer to visit her Hollywood Walk of Fame star!
James is no stranger to carpool karaoke, introducing the fun segment with the original diva, Mariah Carey!
We think in this battle of the carpool divas; Mariah has been taken over by Jennifer!
Watch the hilarious clip in the video player above
The dynamic duo entertained onlookers as they sung up a storm in the car
