Olivia Wilde at the Chrysalis Butterfly Ball in 2011.
The 27 year old Cowboys and Aliens vixen wore a printed gown from the Yigal Azrouel Resort 2012 collection. Nice dress and beautiful girl, as always, but I think it makes her look old.
17 more pictures of Olivia Wilde at the Chrysalis Butterfly Ball after the jump.
Your unofficial free source for the hottest women in the sexiest dresses including Kristen Stewart, Ashley Greene, Emma Watson, Miley Cyrus, Selena Gomez, Blake Lively, Leighton Meester, Vanessa Hudgens and the latest celebrity red carpet photos, bikini candids, Hollywood gossip and more. Namaste!