Celebrities in London and New York, including Prince William and Prince Harry, take part in BGC Charity Day on September 11, 2013 to honor the memory of those who died in the World Trade Center attacks. Michelle Pfeiffer steps out in purple print pantsuit for premiere of "The Family" in New York. Rose Byrne and Patrick Wilson attend the premiere of "Insidious: Chapter 2 in Universal City. New York fashion week celebrity sightings include Katie Holmes, Joan Rivers and Olympic gymnast Nastia Liukin, wearing a bold print pajama-like pantsuit.