Vivien Lyra Blair was 3 in Band Aid when she played the character 'Isis'.
That was over 7 years ago in 2017.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 11, and has starred in 8 movies in total, 5 of those since Band Aid was released.
In Band Aid, I think Vivien Lyra Blair looks: