Since Millie Bobby Brown and Jake Bongiovi announced that they had adopted a baby girl in late August, the new parents have remained relatively tight-lipped about the situation. However, Grandpa Jon Bon Jovi is opening up about the new member of the family, revealing that, for once, he is obsessed with his granddaughter. Jon Bon Jovi, Jake Bongiovi and Millie Bobby Brown at the Miami Open on March 27, 2025. “She's a sweetheart and she's a hard worker,” Bon Jovi said about his daughter-in-law. “[Millie Bobby Brown and Jake Bongiovi] got married really young, but we blessed it because we get it.