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Story summary
- Millie Bobby Brown and Jake Bongiovi announced in August they adopted a daughter, making Jon Bon Jovi a grandfather.
- Bon Jovi expressed joy, calling himself eager, 'pain in the butt' grandpa awaiting updates.
- Fans speculate the name could be Ruth Willow Bongiovi, honoring Brown's late grandmother.
- The baby marks Bon Jovi's first grandchild, joining Dorothea Hurley and their three children.
