Zilgi is a pseudonym used by the composer of the score for the film Longlegs. While the official bio describes Zilgi as a "humanoid vessel for the delivery of sounds and songs," it's widely believed to be a pseudonym for Elvis Perkins, the brother of the film's director, Osgood Perkins. The soundtrack, which features both Zilgi's compositions and contributions from other artists, was released on July 12, 2024.