Olivia Wilde goes braless under a dazzling sheer silver gown at the Academy Museum Gala in LA

Olivia Wilde, Hailey Bieber and honoree Julia Roberts lead stars at Academy Museum Gala

Olivia Wilde Wears Sheer, Crystal-Studded Dress To Academy Museum Gala

The Crown's Olivia Williams keeps things casual in a blue jacket as she tends to her bike