Who: Chloë Sevigny.
When: Wednesday, March 16.
Where: Art Production Fund's "Concrete Jungle" Gala in New York City.
What: A cotton-candy-colored confection by Alessandro Michele of Gucci, which sponsored the event.
Why: An empire waist, a few ruffles, and a Little Mermaid-esque color palette lend Sevigny's gown a youthful, prom-ready air, while the appliqué all-seeing eye on her bust and tight Big Love bun have a certain mature come-hither quality.