Pre-Kindergarteners performed their class play this morning. "But What About the Pigeon?" is based on four Gerald and Piggie stories by Mo Willems. PK decides to do a play about Gerald and Piggie, "The Best of Friends," who take care of each other in many of Mo Willems stories. The class is in agreement about the choice of plays except for one student, who is intent on including another Mo Willems character, the Pigeon, in the play. After trying to convince him otherwise in four short skits, "A Big Guy Took My Ball!," "We Are Invited To A Party!," "I Broke My Trunk," and "There Is A Bird On Your Head!," he finally sneaks the Pigeon into the play at the end, just after the class joins together to sing the Tenacre Song.