Keke Palmer was 9 in Barbershop 2: Back in Business when she played the character 'Gina's Niece'.
That was over 20 years ago in 2004.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 30, and has starred in 35 movies in total, 33 of those since Barbershop 2: Back in Business was released.
In Barbershop 2: Back in Business, I think Keke Palmer looks: