Did Joaquin Phoenix and Reese Witherspoon really sing in Walk the Line?

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Tags

1. #performed
2. #themselves
3. #their
4. #reese
5. #without
6. #phoenix
7. #respectively
8. #songs
9. #guitar
10. #witherspoon
11. #being
12. #learned
13. #dubbed
14. #instruments
15. #joaquin
16. #scratch