Christina Aguilera is the latest star to take part in Carpool Karaoke.
This is the second episode of the show since it moved to primetime.
She chatted about growing up and rising to fame after starring in The Disney Club. She starred in that alongside Britney Spears, Justin Timberlake and Ryan Gosling.
Christina also gave James some vocal lessons, and they even had a surprise visit from Melissa McCarthy.