Context: The score was composed by Joel McNeely. The soundtrack was released by Back Lot Music on May 27, 2014. The theme song "A Million Ways to Die" is performed by Alan Jackson. It was released as a single on April 29, 2014. A portion of the Back to the Future theme by Alan Silvestri is used during Christopher Lloyd's cameo.

Question: who sings a million ways to die in the west?
Steam of consciousness below:

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To answer this question, we should know that: The soundtrack was released by Back Lot Music on May 27, 2014. The theme song "A Million Ways to Die" is performed by Alan Jackson.
So, the answer is Alan Jackson.
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