Back of Jen, Court, and Nicole Aim to Stamp Out Violence Omnipeace's "Stamp Out Violence" event at STK drew a star-studded crowd including BFFs Jennifer Aniston, Courteney Cox, and Sheryl Crow, along with Twilight's Ashley Greene. The women spoke about the charity's fight to end violence against women in the Congo, and a pregnant Nicole Richie said, "I'm all about making people aware and showing them what the problem is. It's impossible to turn your back on something like this." Other celebrities like Demi Moore and David Arquette also attended the event and the stars wrote letters to President Obama in a group effort to bring more awareness to the important cause. View 15 Photos › Photo 1 Photo 2 Photo 3 Photo 4 Photo 5 To see more photos of Courteney, Nicole, Demi, Ashley, and others, just . View 15 Photos › Photo 1 Photo 2 Photo 3 Photo 4 Photo 5 Photo 6 Photo 7 Photo 8 Photo 9 Photo 10 Photo 11 Photo 12 Photo 13 Photo 14 Photo 15 Images include: Nicole Richie, Jennifer Aniston, Courteney Cox, David Arquette, Marisa Tomei, Sheryl Crow, Ashley Greene, Billy Corgan, Jackie Johnson Fame and INFDaily.com Comments jaan_black 8 years Ashley is gorgeous, much prettier than say - Megan Fox Pampire 8 years Celebs taking a stand for what they believe in, I love it!! Way to use that star power! :) Jengal 8 years Tapioca - remind me again how much older Jen is from Nicole? comparing a woman in her early 40s to a woman in her 20s is hardly fair. We all age, it's part of life. fashionplate525 8 years Nicole can do no wrong when it comes to fashion, love it girl! pinkprincess1101 8 years They all look good. Tapioca 8 years It's funny, seems like Nicole could have looked somewhat haggard and worn-out from her years of substance abuse, but she always looks fresh-faced and light and airy to me, yet Aniston is kinda looking more and more like the one who lived Nicole's past. (not implying she does/did drugs. maybe less sun would be better.) ilanac13 8 years everyone looks great there. what i LOVE most is that AG is getting out to events and people are beginning to recognize her more and more. i hope that this is just the tip of the iceberg for her since she's really great.