Cal. Civ. Code § 1812.51

As used in this title, “contract for dance studio lessons and other services” means a contract for instruction in ballroom or other types of dancing, and includes lessons and other services, whether given to students individually or in groups. This title does not include contracts for professional services rendered or furnished by a person licensed under Division 2 (commencing with Section 500) of the Business and Professions Code, or contracts for instruction at schools operating pursuant to the Education Code.