India, Dec. 2 -- Gwyneth Paltrow and her ex-husband, Chris Martin, made a rare public appearance together to celebrate their daughter's special day at the prestigious Le Bal des Debutantes in Paris. Apple Martin made her grand public debut in style in a custom Valentino gown. The 20-year-old was accompanied by her father, and younger brother, Moses, all wearing Valentino designs. The exclusive, invitation-only event, which has been a tradition since 1994, celebrates the empowerment of young women and men from around the world.

The former couple, who have maintained an amicable relationship post-divorce, reunited to support their daughter, Apple, at the prestigious Le Bal des Debutantes on November 30. Prior to the event, Gwyneth shared p...