Article continues below advertisementJon Bon Jovi is loving life as a grandpa.Article continues below advertisementThe rock legend opened up on Bunnie XO's podcast about meeting his son Jake Bongiovi and Millie Bobby Brown's newly adopted baby girl."It's crazy, but great. Wonderful," the rocker said on Sunday, September 21. "They adopted a girl, we met the baby obviously and immediately that becomes your grandchild, you know what I mean? Your baby. It's beautiful.