During the Credits
During the credits of Easy A there is a long continuous shot by the camera traveling down an Ojai road that plays during the entire run of the end credits. Nothing plot related is shown, just the occasional car or pedestrian walking by.
Then right before the very end of the credits, a single grunt by Brandon is heard (similar to grunting he made earlier in the film).
After the Credits
There is no stinger after the credits of Easy A.