Sharing is easy—and it helps more than you know.
1983-Blondie, live in Philadelphia
May 18, 1985-Madonna in Chicago, Illinois
1991-Kate Moss and Naomi Campbell
1995-Claudia Schiffer
1995-Alicia Silverstone and Stacey Dash
June 4, 2000-Sarah Jessica Parker
September 22, 2009-Gwyneth Paltrow
May 9, 2011-Blake Lively
March 21, 2012-Trendsetter Alexa Chung
May 17, 2012-Diane Kruger
