The intersection of employment law and California’s strong Anti-SLAPP statute creates a complex battlefield for litigants, a reality sharply illustrated in Musero v. That said, creative Artists Agency, LLC. Because of that, this published Court of Appeal decision serves as a critical reference point for attorneys navigating claims arising from the entertainment industry’s unique workplace dynamics. The ruling clarifies the boundaries of protected activity under Code of Civil Procedure section 425.Because of that, 16, specifically addressing whether internal agency communications and personnel decisions constitute speech on a public issue or in connection with an official proceeding. For practitioners like Jordan Benel, who represented the defendant agency on appeal, the case underscores the strategic necessity of dissecting the "gravamen" of a complaint to shield clients from meritless litigation designed to chill legitimate business operations.
Background: The Dispute Between Agent and Agency
The litigation originated from the professional relationship between plaintiff Michael Musero and defendant Creative Artists Agency (CAA), one of the world’s preeminent talent and sports agencies. Musero, a former agent in CAA’s Motion Picture Literary department, alleged that his employment was terminated in retaliation for reporting suspected illegal conduct—specifically, the misclassification of employees as independent contractors and potential wage and hour violations—to internal superiors and a government agency.
Worth pausing on this one.
Musero’s complaint asserted causes of action for whistleblower retaliation under Labor Code section 1102.5, wrongful termination in violation of public policy, and related claims. Day to day, he contended that his internal complaints and external reporting were the direct catalyst for his dismissal. CAA, conversely, maintained that Musero’s termination resulted from legitimate, non-retaliatory performance issues and policy violations, including the unauthorized disclosure of confidential client information Most people skip this — try not to..
In response to the lawsuit, CAA filed a special motion to strike under California’s Anti-SLAPP statute. Here's the thing — the agency argued that Musero’s claims arose from its protected petitioning activity—specifically, the internal investigation and decision-making process regarding Musero’s employment status—and that Musero could not establish a probability of prevailing on the merits. Practically speaking, the trial court denied the motion, finding that the claims arose from CAA’s adverse employment action (termination) rather than protected speech, and that the internal communications were not made in connection with a public issue or official proceeding. CAA appealed Less friction, more output..
The Anti-SLAPP Framework: A Two-Step Dance
To understand the appellate court’s reasoning in Musero, one must first revisit the statutory framework of section 425.16. The Anti-SLAPP statute is designed to prevent lawsuits—Strategic Lawsuits Against Public Participation—that aim to silence valid exercises of constitutional free speech and petition rights.
Short version: it depends. Long version — keep reading Easy to understand, harder to ignore..
Prong One: The moving defendant must demonstrate that the challenged claim arises from an act in furtherance of the defendant’s right of petition or free speech under the United States or California Constitution in connection with a public issue. This requires identifying the "gravamen" or principal thrust of the plaintiff’s cause of action Practical, not theoretical..
Prong Two: If the defendant satisfies the first prong, the burden shifts to the plaintiff to establish a probability of prevailing on the claim. This requires the plaintiff to present admissible evidence supporting a prima facie case; the court does not weigh credibility but accepts the plaintiff’s evidence as true.
The Musero appeal centered almost entirely on the first prong: whether CAA’s decision to terminate Musero, and the internal communications preceding it, constituted protected activity.
Prong One Analysis: Protected Activity or Routine Employment Decision?
The Court of Appeal reversed the trial court’s ruling, holding that CAA had met its burden under the first prong. The decision provides a masterclass in distinguishing between the consequence of speech (termination) and the speech itself (investigation and deliberation).
The "Gravamen" Determination
The court emphasized that the focus must remain on the defendant’s activity giving rise to the claim, not the plaintiff’s protected activity. Musero argued that because he was fired for his whistleblowing, the "act" was the termination—a purely employment decision devoid of speech. The appellate court rejected this framing. Citing Park v. Board of Trustees of California State University (2017) and Bonni v. St. Joseph Health System (2021), the court held that where a retaliation claim is predicated on the employer’s response to the plaintiff’s report—specifically, the investigation, deliberation, and decision-making process—that response constitutes the "act" under the Anti-SLAPP statute.
In Musero, CAA’s decision to terminate was not a sudden, unilateral act; it was the culmination of an internal process involving communications among partners, human resources, and legal counsel regarding the validity of Musero’s complaints and his concurrent misconduct. These communications—evaluating legal compliance, ethical obligations, and personnel fitness—were deemed "speech" in connection with an issue of public interest.
Connection to a Public Issue
The court found that the subject matter of the internal communications—allegations of wage and hour violations, employee misclassification, and regulatory compliance—constituted an issue of public interest. California courts have long recognized that statutory violations affecting the workforce, such as labor law compliance, are matters of public concern. The fact that the communications occurred internally, within a private corporate setting, did not strip them of protection. The statute explicitly covers statements made "in connection with an issue under consideration or review by a legislative, executive, or judicial body, or any other official proceeding authorized by law," as well as statements made "in a place open to the public or a public forum in connection with an issue of public interest."
The court reasoned that CAA’s internal investigation was conducted in anticipation of, and in connection with, potential official proceedings (e.g.Which means , Labor Commissioner hearings, court litigation). That's why, the deliberative process was protected petitioning activity.
The "Mixed Motive" and "Pretext" Nuance
A critical aspect of the Musero ruling involves the treatment of mixed motives. Musero argued that even if the investigation was protected, the termination was motivated by retaliatory animus (an unprotected motive), rendering the Anti-SLAPP statute inapplicable. The court clarified that under the "gravamen" test, if the claims necessarily involve the defendant’s protected activity—here, the investigation and deliberative process—the motion to strike
