Gwen Stefani's Carpool Karaoke Involved Some Surprise A-List Stars

George Clooney totally steals the show.

Gwen Stefani is the latest celebrity to take part in James Corden's Carpool Karaoke. And this time it involved a couple of surprise A-list backseat drivers.

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I mean, it was pretty great when Gwen and James started singing No Doubt songs.

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And James got Gwen to act out a load of emojis.

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But then they stopped to pick up a couple of people and gave them a ride. Namely George Clooney...

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And Julia Roberts.

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Who then got involved with the singing.

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And George absolutely killed it with his facial expressions and moves.

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Seriously.

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Here he is singing "This shit is bananas, B-A-N-A-N-A-S."

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👌 👌 You must watch the whole thing in full. 👌 👌