Hollywood stars have a unique gift. It's not the ability to make audiences laugh (or cry), or the free swag constantly bestowed upon them. Their gift comes from the power to promote whatever they support to millions of people.
For people who have lived in the celebrity-laden world of Los Angeles, celebrity-sighting is just an everyday occurrence. But I will always jump up, with eyes bulging, when a celebrity is sighted supporting a cause, like ending homelessness.