No person shall engage in or carry on the occupation of a talent agency without first procuring a license therefor from the Labor Commissioner. The license shall be posted in a conspicuous place in the office of the licensee. The license number shall be referred to in any advertisement for the purpose of the solicitation of talent for the talent agency.

Licenses issued for talent agencies prior to the effective date of this chapter shall not be invalidated thereby, but renewals of those licenses shall be obtained in the manner prescribed by this chapter.