The 23-year-old actress donned a daring, broken glass-embroidered Tom Ford dress.
Earlier in the night, Jen hit the red carpet at the Dolby Theatre where she unfortunately took a tumble.
“This year I did a little stair test,” Jen told ABC News. “But I did trip over a cone, so I’m not safe (laughs).”
10+ pics inside of Jennifer Lawrence at the Vanity Fair party…