Fun Pics of Anna Kendrick and James Corden Rehearsing Their Riff-Off

James meets his backing vocals, The Filharmonic.

James meets his backing vocals, The Filharmonic.

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The rundown for tonight's show.

The rundown for tonight's show.

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The rehearsal begins.

The rehearsal begins.

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Anna and James don't have their intense game-faces on yet.

Anna and James don't have their intense game-faces on yet.

Photo: Late Late Show Digital ©2015 CBS Broadcasting, Inc. All Rights Reserved
It's just like karaoke at your local bar.

It's just like karaoke at your local bar.

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James and Anna look like they're about to touch <em>E.T.</em> style.

James and Anna look like they're about to touch E.T. style.

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This is what it's like to be a cameraman.

This is what it's like to be a cameraman.

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Here's what it's like to be the other cameraman.

Here's what it's like to be the other cameraman.

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It's so good, the crew sat down to watch.

It's so good, the crew sat down to watch.

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The tension is so high, Reggie is about to cry.

The tension is so high, Reggie is about to cry.

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Anna is about to call James out.

Anna is about to call James out.

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James accepts her challenge with a manly hands-on-hips pose.

James accepts her challenge with a manly hands-on-hips pose.

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Anna is in full-control of that microphone.

Anna is in full-control of that microphone.

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Uh oh, James admits defeat.

Uh oh, James admits defeat.

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Hey, camera guy! Get out of the shot.

Hey, camera guy! Get out of the shot.

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James almost knocks Anna over with his point.

James almost knocks Anna over with his point.

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Big Finale!

Big Finale!

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