It shall be unlawful for any person, persons, corporations, organizations, landowner, tenant or lessee to allow, permit, encourage, organize, promote, conduct or advertise any entertainment, game, show, exhibition, activity, amusement, gathering or assembly of persons within the city, where there will be presented outdoor live or recorded musical entertainment, or any other outdoor gathering, assembly or rally which said person, persons, corporation, organization, landowner, tenant or lessee believes or has reason to believe will attract five hundred (500) or more persons, unless a valid city permit is first obtained for the conducting and operating of such said activities. A separate permit will be required for each said activity. (Ord. 1001, 4-27-1971)