Allen was born Aleisha LaNaé Allen in New York City on April 28, 1991, and has been modeling for print and TV ads since the age of 4. As a 6-year-old she appeared on ''Blue's Clues'', and later she became a series regular on ''Out of the Box''.A singer and ballerina (as well as an actress), Allen most recently starred in ''School of Rock'' with 'Jack Black'. She has also appeared in ''The Best Man'' and ''Finding Forrester''.