It's not the first time Billie Eilish and Charli xcx celebrated birthdays together with the sounds of "Guess." In August 2024, Eilish was among the guests at Charli xcx's birthday party in Los ...
In one photo, a 7-year-old Eilish smiles happily in front of a birthday cake designed to look like a vanity. “Happy birthday to my darling beloved Billie! Being your mom has been an ...