Do the actors in Mamma Mia really sing?

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Tags

1. #musical
2. #audiences
3. #their
4. #meryl
5. #already
6. #actors
7. #stellan
8. #talents
9. #movie
10. #seyfried
11. #cooper
12. #vocal
13. #christine
14. #wowed
15. #worldwide
16. #firth
17. #baranski
18. #amanda
19. #which
20. #walters
21. #soundtrack
22. #julie
23. #stars
24. #skarsg
25. #streep
26. #brosnan
27. #pierce
28. #colin
29. #dominic