"We are beyond excited to embark on this beautiful next chapter of parenthood in both peace and privacy," Brown and Bongiovi wrote in their joint post.

New mother Millie Bobby Brown has been seen for the first time with her adopted daughter after revealing her surprise baby news on Thursday.

"This summer we welcomed our sweet baby girl through adoption. We are beyond excited to embark on this beautiful next chapter of parenthood in both peace and privacy," they wrote.