If I use a song for an AD, do I own to win approval first from the song writer beforehand copyrighting my conception?
Answers:
Yes. You call for to achieve go-ahead from whoever owns the copyright. If you don't they can sue to into vacuum. A song is intellectual property. It is the copyright holder's permissible right to determine who can use his/her work and set a payment.
You hold to remember that not adjectives song writers want their work used contained by exposure. Or the copyright holder may hold already sold rights to another company and your use would violate that contract. In which defence two ethnic group could sue you!
Finally, back you use a song or portrait or anything else, you want to know if you can afford to use that work. A major copyright holder will constraint a greater price than a writer not a soul have hear of.