Jessica Chastain debuted a bold new hairstyle, rocking a bouncy bob with a sidepart on the red carpet of the 2026 Breakthrough Prize Ceremony on April 18. She styled the bob with a dramatic side part and paired the statement-making style with a golden Oscar de la Renta gown for the evening. While her hair was giving Hollywood glam, her dress leaned into some bohemian vibes with a palm print and thick tassel hemline. She later gave a behind-the-scenes look of the major haircut in a before-and-after video on Instagram April 19, captioning it, "Choppity chop."
