One of our favorite experiences with live music is checking out the bands' merch in-between sets. We love grabbing a tour T-shirt or a bumper sticker, but we always have our eyes peeled for unique, one-of-a-kind gig posters -- and at Mountain Jam 2015, we might have stumbled onto the grandaddy of 'em all.

As soon as we laid our eyes on the Black Keys' poster that was created specifically for Mountain Jam, we knew we had to have it ... but not for our own collection. No, we grabbed the poster so that we could share it with you. Check it out above -- isn't she a beauty?

And not only is it a beautiful poster that you won't be able to find anywhere outside of Hunter Mountain, N.Y., but we were lucky enough to get Patrick Carney and Dan Auerbach to lay down their John Hancocks on it!

Now, we want to give it away.

All you have to do is follow @DiffuserFM on Twitter and retweet the below message, and you'll be entered for a chance to score this sweet poster!

We'll draw the winner at 9AM ET on Friday, June 12, so make sure you start retweeting! (Contest rules can be found here.) Good luck!

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