Gwen Stefani rocked the latest Carpool Karaoke with James Corden, and was joined by two of her famous friends.
The No Doubt star opened up the segment by singing her classic track Don't Speak with Corden, before the pair went on to chat about her ageless appearance.
Corden said she was like "Benjamin Button" because she's "getting younger" in appearance, to which Stefani credited her new relationship with her Voice colleague Blake Shelton.
"What happened was, my life blew up. After that I kind of started falling in love, and then I wrote a whole record about that. So this is like, it’s almost like, that’s what the facelift is, I think," she laughed.
The carpool became tense when Corden pulled into the HOV4 lane, which meant he needed to have four people in the lane, so he enlisted the help of his pal George Clooney, who joked "you're a pain in the a**". To make up the numbers, Clooney called on his Money Monster co-star Julia Roberts
The A-list group went on to listen to Stefani's hit single Hollaback Girl, which inspired much lyrical interpretations.
Clooney said: "I know what Hollaback Girl means, it means if some guys on a construction site shout at a girl, she’s not going to shout back, she’s not going to Hollaback. Am I close?"
However, Stefani refused to confirm what she was inspired by when she wrote the track, cryptically saying: "It’s your interpretation of the song.
"The real inspiration behind that song I will never say. All I will say is ‘I won’."
