Musical group "We Put The Spring In Springfield" performs during the FOX "The Simpsons" panel on Day 4 of Comic-Con International on Saturday, July 20, 2013 in San Diego, Calif. (Photo by Frank ... more 
Musical group "We Put The Spring In Springfield" performs during the FOX "The Simpsons" panel on Day 4 of Comic-Con International on Saturday, July 20, 2013 in San Diego, Calif. (Photo by Frank Micelotta/Invision for FOX Broadcasting/AP Images) less 
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Associated Press
Sat, Jul 20, 2013 9:26 PM EDT