NYU Langone Medical Center's 2015 Violet Ball
In This Photo: Ken Langone, Elaine Langone
Kenneth Langone and Elaine Langone and guests attend the NYU Langone Medical Center's 2015 Violet Ball on May 7, 2015 in New York City.
(May 6, 2015 - Source: Mike Coppola/Getty Images North America) more pics from this album »