Stars Jared Padalecki and Jensen Ackles have played Sam and Dean who were sent to an alternate reality…in which everybody thought Sam and Dean were actors named Jared Padalecki and Jensen Ackles working on a show called Supernatural.
The show’s version of God wrote a series of paperback novels about the adventures of Sam and Dean, which would become known as The Winchester Gospel.
Supernatural is one of the most meta series ever to hit the airwaves.
The 100th episode featured the boys investigating an incident at all all-girls school…which was putting on a musical based on the books about Sam and Dean.