A whole ton of A-list celebrities strutted their stuff [1] at the Oscars on Sunday night, but perhaps none of them stunned quite as much as Jennifer Lawrence [2]. The Joy actress and Academy Award nominee [3] had jaws firmly on the floor with her sheer, black lace Dior gown, which is definitely one of her best looks of all time [4]. Keep reading to see photos from her sexy night at the award show, and check out her incredible appearance at a charity dinner [5] last week!