May 13, 2026
A Michigan events management company on Wednesday pushed back on the Detroit Lions' request for a Michigan federal judge to toss their trademark infringement suit, arguing the NFL team did nothing to disprove U.S. Events' claim that the Lions used their protected "Motor City Muscle" slogan to promote their team jerseys without their permission.
February 23, 2026
The Detroit Lions have asked a Michigan federal judge to dismiss a trademark lawsuit accusing the NFL team of infringing the "Motor City Muscle" slogan and logo used by a Detroit-area music festival.
December 22, 2025
The producers of a Michigan music festival have gone to federal court to claim that the Detroit Lions used their slogan and logo without permission to promote a new "Motor City Muscle" football jersey design.