Hailey Bieber Backless Dress Hailey Bieber's Backless Cut Out Dress Is Impossible to Ignore Mandatory Mango featuring Hailey Bieber high neck backless ruffle maxi dress in brown ASOS Hailey Bieber Met Gala 2019 Hailey Bieber And Margaret Qualley Have Us Turning Our Backs on Basic Dresses Your Coffee Break Hailey Bieber kept it sleek and flirty in a soft pink Alexander Wang gown, turning heads with an open back, crystal thong detailing, and a high ponytail topped with a black velvet