Ep 5. Fallen Idol

In season 5, episode 5 of Supernatural titled "Fallen Idol", Sam and Dean investigate a series of grisly murders at a small town. The victims were all fans of a famous teenage heartthrob, who happens to be in town for a concert. The brothers quickly realize that the cause of the killings is not a usual supernatural creature, but rather the result of a cursed object that is making the idol's merchandise come to life and attack his fans.

As the brothers delve deeper into the case, they discover that the legendary Robert Johnson's guitar, a holy relic that can summon the demon Crowley, is at the heart of the curse. The guitar had fallen into the hands of the teenage idol, who was using it to gain fame and fortune. The cursed merchandise was actually made from pieces of the guitar, which were being sold to his fans.

Sam and Dean manage to retrieve the guitar and track down the idol, who is revealed to be a jerk with no respect for his fans or the music he's playing. He doesn't believe in the curse, but when the cursed merchandise traps him inside his dressing room and the brothers are unable to rescue him, he finally realizes the truth.

The episode is notable for featuring cameos from several real-life music legends, who all attempt to purchase the cursed merchandise. These include Eric Kripke (the show's creator) as a music store clerk, and the band Kansas as themselves.

Ultimately, Sam and Dean are forced to destroy the cursed merchandise and the guitar, breaking the curse and preventing any more deaths. The idol, humbled by his near-death experience, decides to retire from music and use his fame and fortune to make a difference in the world.

Overall, "Fallen Idol" is a fun, entertaining episode that successfully blends the show's horror elements with its trademark humor and pop culture references. It also serves as a reminder that even the most seemingly innocent objects can hold dangerous secrets.