NYU Bestows Honorary Degrees on Fed Chair Janet Yellen, Yankees Pitching Great Mariano Rivera, U.S. Supreme Court Justice Elena Kagan, Singer Aretha Franklin and Distinguished Attorney Martin Edelman NYU President John Sexton and Trustees Chair Martin Lipton officiated at NYU's 182nd Commencement in Yankee Stadium. Some 8,000 students receiving undergraduate, graduate, and professional degrees and 25,000 guests attended the morning ceremony, which was also attended by alumni, faculty, and other NYU community members.