Pakistan, July 31 -- Billie Eilish celebrated her brother Finneas O'Connell's 28th birthday by sharing sweet throwback photos on Instagram. The Grammy-winning singer posted a childhood photo of the duo and penned a heartfelt caption, calling herself lucky to be his sister.

In the first photo, newborn Billie lies beside her big brother as he gazes at her with affection. The touching moment left fans emotional, highlighting the close bond between the siblings.

Later, Billie shared another adorable photo on her Instagram Stories. In the image, a young Finneas gently holds baby Billie in his arms. She wrote, "Love you so sosososososososososososo much happy birthday @finneas."

The Ocean Eyes singer often praises Finneas, not just as a broth...