Private Practice star Kate Walsh is just red hot on the lawn of the 2008 Crysalis Butterfly Ball on Saturday in Brentwood, Calif.

It doesn't get much hotter than Kate Walsh!

The 40-year-old Private Practice star wore a red Escada dress and posed alongside fellow actress Rebecca Gayheart-Dane.

Rebecca is the wife of Grey's Anatomy star Eric Dane.

The bash was said to have raised over $1 million for the L.A.-based group, which helps homeless men and women find jobs and a roof over their head.

Hats off to Kate Walsh for supporting a good cause!