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

James meets his backing vocals, The Filharmonic.

1. James meets his backing vocals, The Filharmonic.

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The rundown for tonight's show.

2. The rundown for tonight's show.

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The rehearsal begins.

3. The rehearsal begins.

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

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

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It's just like karaoke at your local bar.

5. 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.

6. 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.

7. 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.

8. 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.

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

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

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

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Anna is about to call James out.

11. Anna is about to call James out.

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

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

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Anna is in full-control of that microphone.

13. Anna is in full-control of that microphone.

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Uh oh, James admits defeat.

14. Uh oh, James admits defeat.

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Hey, camera guy! Get out of the shot.

15. Hey, camera guy! Get out of the shot.

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James almost knocks Anna over with his point.

16. James almost knocks Anna over with his point.

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Big Finale!

17. Big Finale!

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