Dear Robert,

This is to ask you to let the TV show Supernatural to use one of Led Zeppelin's songs.  Any of their songs, as agreed between the band and Eric Kripke.  We know that the rights to Led Zeppelin songs are treated with the care they deserve.  We think Supernatural, for its services over the years to rock music in Hollywood, and to the cause of Led Zeppelin in particular, deserves its chance.   And you are a famous man who is famously nice to ordinary people, so we do have hope you won't mind us at least asking.

Classic rock, and specifically Led Zeppelin, have been promoted by Supernatural since its start in 2005.   Their stall is set out in the Pilot episode, when it's made clear that Dean Winchester, an unlikely hero, is a fan of what his brother Sam calls "the greatest hits of mullet rock".  (On the basis of that comment, and his behaviour in Season 4, Sam Winchester has sometimes been possibly slightly less of a hero than Dean.)    Dean's tastes in music are even more specifically laid out in Season 1's episode 3, Dead in the Water, when he teaches the traumatised, and formerly mute, child Lucas a very important phrase: "Zeppelin rules". 

In another Season 1 episode, “Scarecrow,” Dean introduces himself using one of his classic rock aliases: "Hi, I'm John Bonham".  "Isn’t that the drummer for Led Zeppelin?" comes the response.  "Wow. Good." says Dean, "classic rock fan".   It's the start of a run in which the names of band members are taken by Dean and Sam, not in vain but as cover for saving the world from supernatural evil.  In the Season 3 episode “Bedtime Stories,” Sam and Dean interview a witness in hospital while posing as detectives from the County Sherriff's Department:  "I'm Detective Plant, this is Detective Page", says Dean.  In the current Season 5, in the episode "Fallen Idol" Dean is back to being John Bonham, and in "I Believe the Children Are Our Future" Dean and Sam are Detectives Plant and Page again.

Dean Winchester's love of classic rock in general, and of Led Zeppelin in particular, doesn't always work in his favour.  In Season 2's “Everybody Loves a Clown,” Jo Harvelle says "You know, I thought you were going to toss me some cheap pick-up line.  Most hunters come through that door think they can get in my pants with some pizza, a six pack, and side one of Zeppelin IV."   As Dean says in reply, rapidly revising his plans, "Well, what a bunch of scumbags".   On the other hand, when Dean is asked to prove that he has a fan's knowledge of himself, in Season 4's “The Monster At the End Of This Book”  (great episode, by the way), he has no trouble naming his favourite songs: "It's a tie.  Between Zep's Ramble On and Travelling Riverside Blues"  

In the absence (so far) of actual Led Zeppelin songs on screen in Supernatural, there has at least been the consolation of the band's song and album titles being used as episode titles: “In My Time Of Dying,” “Houses of the Holy,” and “What Is And What Should Never Be” in season two, and “When The Levee Breaks” in Season 4.  And just two weeks ago there was a Season 5 episode called “The Song Remains The Same.” 

If you have concerns about how well the show might treat its use of Led Zeppelin music, there are plenty of great examples where song and story have been used in Supernatural in a way which enhances both.  If you would like to check out some examples, how about the following -