star Millie Bobby Brown seemingly confirmed that she and longtime boyfriend Jake Bongiovi were engaged. This means that, at some point in the future, the actress may very well be calling famous rocker Jon Bon Jovi her father-in-law.Whether it's a case of a celebrity tying the knot with someone who comes from Hollywood royalty or two huge stars becoming in-laws when they each marry famous siblings, these often forgotten, possibly strange, and generally unexpected familial bonds might just surprise you.Millie Bobby Brown, 19, seemingly got engaged to boyfriend Jake Bongiovi, 20, who is the son of famous New Jersey rocker Jon Bon Jovi.