Shin Chan and the California Stimps/Episode 84
From Bubblegum Wiki
Operation Shinless: At the Annual Internation School Fair, Mr. Taylor "Josh-chan" tries his best to protect Shin well away from Miss Anderson - a former teacher who still hates him.
Backstage for Fun: Not looking forward to watch Shin's "The Five Fun Group" concert, Arnold and Gerald decide to take the train a few stops too many, but end up backstage.