I keep hearing that "Angel with a Shotgun" is the Destiel theme song

Me: I guess I'll give it a listen.
Angel with a Shotgun: *intro*
Me: pfff what is this, the Lion King?
Angel with a Shotgun: I'm an angel with a shotgun shotgun shotgun...
Me: Oh man, this is so corny. Why does everyone like this song?
Angel with a Shotgun: If love's a fight, then I shall die with my heart on the trigger...
Me: Okay, that was a cool turn of phrase, but...
Angel with a Shotgun: They say before you start a war, you better know what you're fighting for...
Me: I guess I can see how people would see Cas in this song...
Angel with a Shotgun: If love is what you need, a soldier I will be...
Me: Oh no. My Destiel feels. What are they doing?
Angel with a Shotgun: I'll throw away my faith, babe, just to keep you safe...
Me: C...Cas...
Angel with a Shotgun: Don't you know you're everything I have?
Me: *sob* He just loves Dean so much...
Angel with a Shotgun: And I wanna live, not just survive...
Me: You deserve everything you want, Cas! You deserve all of Dean's love! You deserve to live!
Angel with a Shotgun: I'M AN ANGEL WITH A SHOTGUN...
Me: FIGHTING TIL THE WAR'S WON, I DON'T CARE IF HEAVEN WON'T TAKE ME BACK...