Why does Twenty One Pilots singer have a black neck?

Related questions

1. Why does 21 pilots wear yellow tape?
2. Where was twenty one pilots stressed out filmed?
3. Why do I feel so stressed all the time?
4. Is Twenty One Pilots a pop band?
5. Why does Tyler have a black neck?
6. Does Josh Dun have a wife?
7. What is the meaning of stressed out?
8. What is the meaning of trench Twenty One Pilots?
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10. What does the Bible say about worrying?

Tags

1. #music
2. #singer
3. #comes
4. #tyler
5. #reason
6. #painted
7. #paints
8. #pilots
9. #throughout
10. #because
11. #blurryface
12. #black
13. #twenty
14. #joseph
15. #album
16. #where
17. #hands