Billie Eilish Officiates Brother Finneas’s Montecito Wedding in Olive-Green Corset Dress

Billie Eilish officiated her brother Finneas O’Connell’s August 29 wedding to Claudia Sulewski in Montecito, turning heads in a plunging olive‑green corset dress with an auburn bob and dark lipstick, and attending with boyfriend Nat Wolff amid a star‑studded guest list that included Kristen Bell, Dax Shepard, Hailey Bieber, and Nina Dobrev.