The billionaire businessman and philanthropist, Ronald Perelman, announced that he will donate $75 million to build a performing arts center at the World Trade Center site. Plans for the complex have been stalled for years as officials sorted out the redevelopment of the area. Frank Gehry had proposed a design for the center, which was shelved when the project failed to move forward. In honor of Perelman’s generosity, the new center will bear his name.