The New York street performer known as the Naked Cowboy can sue Mars Inc. for trademark infringement, a judge ruled today, over a singing blue M&M wearing his signature costume on a Times Square billboard, Reuters reports. In seeking $6 million in damages, Robert Burck "plausibly alleges that consumers seeing defendants' advertisements would conclude—incorrectly—that he had endorsed M&M candy," the judge wrote. (More Robert Burck stories.)