The 23-year-old pop star joined several friends and Elsa Pataky, wife of the 26-year-old's brother and fellow actor Chris Hemsworth, 32, at Soho House West Hollywood.
Elsa, 39, posted a photo of the group on her Instagram page.
"True friends are never apart, maybe in distance but never in heart! #girlslunch #la #bestmoments #loveyougirls #missyou @gisellamarengo @martamilans @mileycyrus #michele #nora," she wrote alongside the pic.
Cyrus, who rose to fame as a the star of the Disney Channel's Hannah Montana, sports high-waisted, painted Mickey Mouse jeans, a purple and black striped cropped t-shirt and white sneakers and does her signature pose-she sticks out her tongue.