Natalie Portman enjoyed a relaxed beach day in St. Bart's as she rang in the first day of 2026. The actress, 44, soaked up the Caribbean sun while wading along the shoreline during a quiet start to the new year on Thursday, January 1. Portman wore a sleek black one-piece swimsuit with a plunging neckline, keeping the look simple, modern and effortlessly chic.