Singer Billie Eilish, born Billie Eilish Pirate Baird O’Connell, celebrated her 20th birthday on Saturday, receiving a heartfelt tribute from her brother Finneas for the occasion. Finneas, a musician who has played a significant role in Eilish’s success, took to Instagram to extend warm birthday wishes to his younger sister.

As someone four years her senior, Finneas expressed joy in witnessing Eilish’s growth into a thoughtful, kind, talented, humorous, and hardworking individual. He conveyed his love for being her elder brother, emphasizing that there’s nothing he treasures more. Alongside his message, Finneas shared two photos of Billie and a playful video featuring Billie and their mother, Maggie Baird, an actress and former theater teacher.

In the photos, presumably taken by Finneas, Billie is seen wearing a neon green windbreaker, black pants, and a gold chain necklace, seated on the floor with her blonde hair in a messy bun, holding a pink iPhone. The accompanying video captures a lighthearted moment where Billie playfully nibbles on her mother’s hair, prompting laughter and banter.

The close bond within the Eilish family is evident, especially between the siblings, who thrive creatively together. Finneas’s contributions to Billie’s debut album, “When We All Fall Asleep, Where Do We Go?,” have earned him eight Grammy Awards. 

In an interview with NME, he highlighted the unique dynamic they share, underscoring the irreplaceable intimacy of sibling collaboration in their creative process.

Despite his positive experiences collaborating with various artists, Finneas emphasized the unparalleled strength of their creative bond, rooted in their sibling relationship.