Board Thread:Supergirl discussions/@comment-27700324-20180417022808/@comment-27700324-20180424023343

Hillshadow wrote: "Carry On My Wayward Son" is LITERALLY the theme song of Supernatural. And since the CW owns both shows, I am 100% confident it was a big nod to it. They own both, but that could just be a nod to the song. The song was out long before Supernatural.