What's The Episode?

So, some of you will probably think you're the world's BEST and ONLY Supernatural Fan. Here's a little fun for you. Try and tell me what the Episode is, JUST by the Song. That should keep you occupied for around 30 seconds. I'll make it a really easy one as it's the first.

The first song for the day is ............ *drum roll please* ....................

Wanted Dead Or Alive

Have fun :->

The Episode in question was ... NO REST FOR THE WICKED.