Madonna's 12-year-old twin daughters Stella and Estere proved they're growing up so fast while posing for a photo with Billie Eilish after attending her Oct. 17 concert in New York City.
BillieEilish declared that she would not share details ... her career at such a young age has not always been easy. "I got famous at 13 and suddenly had to live a really weird life, and I never ...