Plainfield teen with autism gets ultimate birthday surprise from Simpsons creator

PLAINFIELD, Ill. -- A teenager with autism received a birthday surprise she will never forget.

16-year-old Jessica from Plainfield is a huge Simpsons fan -- and loves to draw.

Her mother, Lynda Liberatore, sent the show's creator, Matt Groening, a letter with some of her Simpsons' drawings.

Well, Groening sent a letter back -- along with a poster of the entire Simpsons cast -- dedicated just to Jessica for her birthday.

Lynda shared the heartwarming video with WGN:

On top of the poster, Groening wrote: "This is a Simpsons poster dedicated to Jessica and don't you forget it, man." He also drew some pictures of Bart and Lisa with messages encouraging her to continue her art.

Watch the heartwarming video in the player above