Ashley Olsen & Katherine Moennig Both Opt for Black at Hammer Museum's Gala in the Garden

Ashley Olsen wears a pop of turquoise color while attending Hammer Museum's Gala In The Garden with generous support from Bottega Veneta on Saturday evening (October 11) in Westwood, Calif. The 28-year-old actress and fashion designer was joined by Glee‘s Jane Lynch, CSI‘s Marg Helgenberger, Ray Donovan‘s Katherine Moennig, and Bored to Death‘s Olivia Thirlby.