Chrysalis Butterfly Ball

01 / 7

Actors Ashton Kutcher, left, and Demi Moore arrive at the 7th Annual Chrysalis Butterfly Ball on Saturday, May 31, 2008, in Los Angeles. (AP Photo/Chris Weeks)

02 / 7

Actress Kate Walsh poses for photographers while arriving at the 7th Annual Chrysalis Butterfly Ball on Saturday, May 31, 2008, in Los Angeles. (AP Photo/Chris Weeks)

03 / 7

Actress Mila Kunis arrives at the 7th Annual Chrysalis Butterfly Ball on Saturday, May 31, 2008, in Los Angeles. (AP Photo/Chris Weeks)

04 / 7

Actress Katherine Heigl arrives at the 7th Annual Chrysalis Butterfly Ball on Saturday, May 31, 2008, in Los Angeles. (AP Photo/Chris Weeks)

05 / 7

Actors Ashton Kutcher, (l), and Demi Moore arrive at the 7th Annual Chrysalis Butterfly Ball on Saturday, May 31, 2008, in Los Angeles. (AP Photo/Chris Weeks)

06 / 7

Actors Eva Mendes, (from left), Eric Dane and Rebecca Gayheart arrive at the 7th Annual Chrysalis Butterfly Ball on Saturday, May 31, 2008, in Los Angeles. (AP Photo/Chris Weeks)

07 / 7

Actor Topher Grace arrives at the 7th Annual Chrysalis Butterfly Ball on Saturday, May 31, 2008, in Los Angeles. (AP Photo/Chris Weeks)