Jenna Dewan was 20 in Janet: Live in Hawaii when she played the character 'Dancer'.
That was over 22 years ago in 2002.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 43, and has starred in 21 movies in total, 20 of those since Janet: Live in Hawaii was released.
In Janet: Live in Hawaii, I think Jenna Dewan looks: