The Last of the Red Hat Mamas

"The Last of the Red Hat Mamas" is the seventh episode of the seventeenth season of "The Simpsons". It originally aired on the Fox Network in the United States on November 27, 2005. In the episode, Marge befriends a group of women called the Cheery Red Tomatoes, while Milhouse tutors Lisa in Italian. Lily Tomlin guest stars as the voice of Tammy, the leader of the group. "The Last of the Red Hat Mamas" was the second highest rated of the season with 11.5 million viewers.
Plot.
At Mayor Quimby's Easter egg hunt, Homer gets into a fight with the Easter Bunny mascot. Marge takes a tour of the mayor's mansion, and she and her friends are embarrassed by Homer's antics. That night, Homer feels guilty and unsuccessfully tries to find Marge new friends. Going for a walk, Marge meets a group of women called the Cheery Red Tomatoes. She befriends the leader, Tammy, and is inducted into the group.
Marge learns that the Cheery Red Tomatoes plan to steal Fabergé eggs from Mr. Burns's mansion, after he hijacked their fundraiser. She goes along with this to stay in the group, while Homer finds the heist plans and follows Marge. He mistakenly alerts the police on his way over, who catch the Cheery Red Tomatoes stealing the eggs. As Marge leaves, she reveals to Tammy that she has hid one of the eggs inside her hair, completing the heist. They agree to go their separate ways and stay safe, while Homer reassures Marge that she will always have him as a special friend.
Meanwhile, Lisa seeks summer opportunities and decides on studying abroad in Rome. The only requirement Lisa has not met is to speak fluent Italian, so she hires a tutor, who turns out to be Milhouse. To Lisa's surprise, Milhouse is fluent in Italian from having spent summers with his abusive xenophobic Italian grandmother, who beat him for speaking English. Lisa enjoys the special time spent during her lessons and learning Italian culture, and begins to like Milhouse more, but soon comes across Milhouse tutoring another girl in the same way he taught her, and stops liking him. She berates him in perfect Italian, chasing him with a stick in the same manner his grandmother did.