Lawyers for Michael Jackson filed suit Tuesday against a California charity they claim is using the late pop superstar’s name and phrases associated with him to scam fans, reports Reuters.

Administrators for Mr. Jackson’s estate say the Heal the World Foundation’s online fund-raising materials use terms such as “King of Pop” and “Heal the World” to imply that donations support the singer’s favored causes. The foundation and United Fleet, an affiliated entity also named in the suit, have registered six Jackson-related trademarks and applied for 41 more, according to the suit.

Lawyers say the plaintiffs have no relationship with the Jackson family or the original Heal the World Foundation, a now-defunct charity that Mr. Jackson started in 1992.