Queen Latifah was 19 in The Earth Day Special when she played the character 'Herself'.
That was over 34 years ago in 1990.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 54, and has starred in 68 movies in total, 66 of those since The Earth Day Special was released.
In The Earth Day Special, I think Queen Latifah looks: