"New Kids on the Blecch"
Season 12, Episode 14
In a strange twist of events, Bart, Milhouse, Nelson, and Ralph are recruited to form a boy band called the "Party Posse." With their gear that's both wholesome and heartthrob, the boys perfectly encapsulate both the fashion and music on the early 2000's. Seeing this episode definitely freezes a moment in time, and also makes us appreciate how far Justin Timberlake has come.