This Sunday on The Simpsons is "New Kids on the Blecch". The story begins at the Springfield Marathon, where the winner is Bart---who sneaked onto the course just blocks from the finish line. He's rescued from an angry mob by record producer L.T. Smash (Hank Azaria), who sees the “bad boy” as a perfect fit for the group he's creating. The band is called Party Posse, and its other members are Milhouse, Nelson and...Ralph Wiggum? After honing their moves, threads and “'tudes,” the quartet is a hit, even garnering post-show praise from 'N Sync. But Lisa discovers something definitely out of sync with the Posse's first video.