Hailey Baldwin Channels Laetitia Casta’s Iconic Flower YSL Crop Top & Underwear With Justin: Watch

Hailey Bieber emulates French supermodel Laetitia Casta's 1993 runway look

Emily Ratajkowski flashes her toned abs and bottom in crop top and chaps as she dresses as cowgirl

Hailey Bieber puts on a leggy display in spandex shorts as she grabs breakfast with friends