The singer sparked an uproar a year ago when he complained that Prince's estate was "taking my name away from me." Here's where things stand now.
The trademark lawsuit claims an unaffiliated group "hatched a scheme" to make ticket buyers think it was the real band.
Attorneys for the iconic rapper says he is — legally speaking — the real Slim Shady.
The organizer of the Washington event says he's already agreed to change the name and was surprised to be sued for trademark infringement by the "multi-billion dollar company."
Trademark infringement is always bad, but the band says it's "particularly damaging" to be associated with guns and "polarizing" political views.