California girl Kate Walsh ventured over to Louisville, Kentucky for her very fist visit to the Kentucky Derby this weekend, and InStyle caught up with the actress as she made her final and most important outfit decision—the hat. “I want something simple, but elegant,” the Private Practice star told us over the phone. “I don’t want to have the hat that eclipses everything else, and I don’t want to look funereal.” She said she had several choices to pair with her white Max Mara dress, including toppers with veils, but it all came down to size and shape. “You want something that’s strong, but not too overwhelming,” she explained. “You don’t want to look like the crazy hat lady.” Walsh revealed her final choice—a game day decision—when she arrived at the Derby to host Mott's Garden Blend Suite with a navy wide-brim hat with a single feather from Ariane Millinery.