The Comisión Nacional de los Mercados y la Competencia says the collecting society has used its dominant position to hinder "the entry and expansion" of competitors.
Plaintiffs were allegedly as young as 14 years old when working at the company and exposed to "pornography" related to his YZY Porn endeavor.
The pop star's one-liner was made during his Boston concert on June 29.
The DJ/producer is accused of sharing sexually-explicit content without permission.
The civil complaint was filed in Manhattan federal court on Friday (June 28).
Government attorneys noted this week that they might file additional claims against the concert giant, which wants the case transferred to Washington, D.C.
The fashion line and the superstar producer are accused of trademark infringement over their line of $500 socks featuring tiny pockets.
The accused has been locked up since September as he awaits his Nov. 4 trial date.
A group of angry consumers say the satellite radio giant has been quietly adding a misleading “U.S. Music Royalty Fee” that jacks up prices above what's actually advertised.
"It's been an honor to serve as Britney’s litigator and primarily to work with her to achieve her goals," the Greenberg Traurig partner says as he shifts focus toward other clients.