Washington DC, Aug. 21 -- 'Stranger Things' star Millie Bobby Brown has revealed that she adopted a daughter with her husband Jake Bongiovi, reported Variety.

The 21-year-old star made the surprise announcement on her Instagram account on Thursday morning.

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"This summer, we welcomed our sweet baby girl through adoption," she wrote. "We are beyond excited to embark on this beautiful next chapter of parenthood in both peace and privacy. And then there were 3. Love, Millie and Jake Bongiovi." Brown's announcement also included a picture of a willow tree.

Brown and Bongiovi, the 23-year-old actor and son of musician Jon Bon Jovi, began dating in 2021...