100% Authentic Signed In-Person. Matt Groening and The Simpsons cast signed 11×14. This is an 11×14 photo autographed by the cast and creator, Matt Groening of the hit tv series The Simpsons. In addition to signing the photo Mr. Groening also did a drawing of Homer Simpson. It is very difficult to obtain a drawing from Matt these days as he has gotten a lot tougher about sketching in public. The other signatures include Dan Castellaneta, Julie Kavner, Nancy Cartwright and Yeardley Smith. Matt signed the photo and did the drawing on 01-31-15 at Royce Hall on the UCLA Campus in Westwood, Ca. The cast then all signed the photo on 03-01-18 at the Fox Studio Lot. This photo is certified authentic by PSA/DNA and will come with their certificate of authenticity. International Buyers Please Note. The item “The Simpsons Matt Groening & Cast Signed 11×14 withHomer Drawing PSA/DNA” is in sale since Friday, May 8, 2015. This item is in the category “Collectibles\Autographs\Television”. The seller is “evergraphs” and is located in Los Angeles, California. This item can be shipped worldwide.