Julia Roberts in Givenchy

BEVERLY HILLS, CA – OCTOBER 13: Actress Julia Roberts arrives at amfAR Los Angeles 2017 at Ron Burkleâs Green Acres Estate on October 13, 2017 in Beverly Hills, Californi (Photo by Jon Kopaloff/FilmMagic)

BEVERLY HILLS, CA – OCTOBER 13: Honoree Julia Roberts attends the amfAR Gala Los Angeles 2017 at Ron Burkle’s Green Acres Estate on October 13, 2017 in Beverly Hills, California. (Photo by Alberto Rodriguez/amfAR/Getty Images for amfAR)