Is it true that it is illegal to sing Happy Birthday?

Related questions

1. How do you wish happy birthday to BAE?
2. Can I recycle greeting cards?
3. Should I keep cards?
4. What is the proper way to say happy birthday?
5. What is a better way to say happy?
6. How can I wise my birthday?
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8. What's a birthday wish?
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10. What is a spiritual birthday?

Tags

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2. #birthday
3. #licensing
4. #happy
5. #chappell
6. #reported
7. #upshot
8. #which
9. #without
10. #copyright
11. #expired
12. #receive
13. #music
14. #perfectly
15. #paying
16. #decades
17. #legal
18. #warner
19. #words