Last week, Lauren Conrad attended the Avon Hope Honors Benefit on behalf of the m.powerment campaign, her philanthropic initiative with mark cosmetics.

The former star of The Hills opted for a retro look, reminiscent of Rita Hayworth and Veronica Lake, showing off a polished complexion and a velvety finish.

We like the subtle rosy glow, and the fact that unlike so many stars of today, who opt for the same, revealing appearance, LC keeps it both classy and sexy.

It seems like that would be a contradiction in terms, but we think she pulls it off.

You? Take a look at Lauren at her event last week and vote in our survey below: