Gwen Stefani joined James Corden for the latest Carpool Karaoke for his Late Late Show, and they were accompanied by two special guests.
That’s right, George Clooney and Julia Roberts – two of Hollywood’s biggest stars – joined the pair for a chat and sing-a-long.
But to start, Gwen and James both sang along to some of Gwen’s biggest hits including Don’t Speak and The Sweet Escape and Rich Girl – where the popstar taught James some of the lyrics to the fast-speaking verses.
James then decided to call up a friend as the pair were about to drive through a carpool lane for four people.
And that friend was of course, none other than George Clooney.
James joked to Gwen about George: “He’s got nothing to do”.
George then asked Julia Roberts to join them too, as they needed a fourth person.
The foursome then sand Hollaback Girl, which George then explained to the group how he interpreted the song:
"'I ain't no hollaback' meaning if some guys are on a construction site and they're yelling at a girl, she's not going to turn back, she's not that kind of girl," he said.
And Gwen replied saying he was “quite close”, but she wouldn’t reveal the real reason behind the lyrics, only saying that she “won”.
With George singing and dancing along and his quick one-liners, could possibly make this Carpool Karaoke the best one yet.
What did you make of the latest Carpool Karaoke video?
Let us know via Facebook and Twitter (@CloserOnline).