Halloween Fashionintsa of the Week: Winnie Harlow, Lilly Singh, Justin Bieber and more

This Halloween, celebrities tapped into childhood nostalgia with creative costumes. Justin and Hailey Bieber channelled a modern Fred and Wilma Flintstone, while Winnie Harlow wowed as both Kat Williams and Cruella De Vil. Lilly Singh’s family ‘Where’s Waldo’ look and Priyanka’s Lunette the Clown added playful throwbacks.