Bart Simpson Nancy Cartwright Shocks Student with 'Impression'

3/26/2017 12:50 AM PDT

Nancy Cartwright Shocks Student with Bart Simpson 'Impression'

Nancy Cartwright is awesome ... slowly and slyly revealing to a kid on a mission he's lookin' at the voice of Bart Simpson.

Nancy was at a shopping mall in Sherman Oaks, CA when she happened upon an 8th grader who was hawking sweets.

You gotta see his reaction when the light bulb goes on.