Alicia Keys (Kevork Djansezian/Getty Images)

Oprah Winfrey (Photo by Andrew H. Walker/Getty Images)

Angelina Jolie (Photo by Ethan Miller/Getty Images)

Reese Witherspoon (Photo by Frazer Harrison/Getty Images)

Katie Piper (Photo by Ben Pruchnie/Getty Images)

Michelle Obama( Robyn Beck/AFP/Getty Images)

Rosario Dawson (Photo by Stephen Lovekin/Getty Images for V-Day)

Jennifer Lopez

Jennifer Lopez (Photo: Michael Buckner/Getty Images)

Shakira (Photo: Larry Busacca/Getty Images North America)