It isn't anymore, if it ever was. https://arstechnica.com/tech-policy/2016/02/happy-birthday-is-public-domain-former-owner-warnerchapell-to-pay-14m/ https://ars

It isn't anymore, if it ever was. https://arstechnica.com/tech-policy/2016/02/happy-birthday-is-public-domain-former-owner-warnerchapell-to-pay-14m/ https://arstechnica.com/tech-policy/2016/02/happy-birthday-i...