Michael Jackson’s estate has filed suit against two California organizations that it alleged sought infringing trademarks for phrases such as “King of Pop” and “Thriller” in an attempt to masquerade as a legitimate charity tied to the late pop star.

The suit — the first trademark infringement case for the estate since Jackson’s death on June 25 — was filed on Tuesday in federal court in Los Angeles. It names the Heal the World Foundation and its affiliated corporation, United Fleet, which operates in the California cities of Indio and Palm Desert.