She may not be dancing on stage like her groundbreaking mom, but Lourdes has taken after Madonna in a myriad of other ways. She's equally as poised and outspoken, and the two even collaborated professionally on the aptly named clothing line Material Girl. The successful venture debuted in 2010, when Lourdes was just 13. The two are so close that Madonna was devastated when her oldest child, now 18, left home to attend the University of Michigan, but the "Ghosttown" singer is happy to know she's still needed. "My sister said it to me when her son went away. I was like, 'Oh my God, you're being so dramatic.' She was, like, bawling and bawling," Madonna told Ellen DeGeneres
. "And then my daughter left me, and I fell into the deepest depression. And I'm always so happy when she calls me and she says, 'Mommy, I miss you,' or, 'I need you to rub my head.'"