August 17, 2026

Britney Spears, FKA twigs, and Selena Gomez represent a trio of influential women, each a powerhouse in her own right. With the resources to select any legal counsel in the nation, they all chose Mathew Rosengart of Greenberg Traurig as their defender in high-stakes, highly publicized legal challenges.
Selena Gomez is the most recent celebrity to seek Rosengart's expertise after being sued over alleged misrepresentations concerning her mental health startup, Wondermind. The plaintiffs claim they were misled about the company's leadership and potential, demanding reparations for their $1.2 million investment. Rosengart’s response was swift and dismissive of the allegations. "The allegations that Selena Gomez engaged in any way whatsoever in any purported 'fraud' or other wrongdoing are completely meritless, both factually and legally," he stated confidently, promising a vigorous defense and a motion to dismiss the baseless claims.
Rosengart skyrocketed to fame in the legal and pop culture realms when Britney Spears appointed him in 2021 amidst her conservatorship turmoil. His aggressive approach yielded immediate results, leading to the suspension of Spears' father from the conservatorship, which ultimately ended months later. Spears herself has credited Rosengart with dramatically transforming her life.
FKA twigs, legally known as Tahliah Barnett, turned to Rosengart following a settlement with actor Shia LaBeouf, whom she had sued for sexual battery and assault. As LaBeouf initiated arbitration against her, Barnett, under Rosengart's counsel, countersued regarding a potentially unlawful nondisclosure agreement, seeking to have parts of it deemed unenforceable under California law.
Rosengart's niche in representing high-profile women during pivotal moments of their public and legal lives has made him a standout figure in the Biglaw realm. His journey from federal prosecutor to celebrity advocate is marked by his strategic defense and advocacy for his clients' rights, reflecting a deep commitment to justice, whether the client is a global celebrity or a corporate entity.
"When powerful women need a powerful advocate, and the entire world is watching, Rosengart seems to be the Biglaw lawyer they trust," encapsulates the trust and confidence these celebrities place in him during their most vulnerable times.
This unique convergence of legal acumen and celebrity advocacy underscores Rosengart's exceptional position within the intersection of law and entertainment, demonstrating why stars like Spears, Barnett, and Gomez entrust their most critical legal battles to him.