Film Music Reporter has learned that Marco Beltrami has taken over scoring duties on the comic book adaptation Jonah Hex. He is replacing John Powell, who reportedly was working on the score with the heavy metal band Mastodon last fall. No word yet if any of Mastodon’s music will stay in the picture. Jonah Hex is set in the Wild West, where a scarred bounty hunter tracks a voodoo practitioner bent on liberating the South by raising an army of the undead. The movie is directed by Jimmy Hayward (Horton Hears A Who!) and stars Megan Fox, Josh Brolin, John Malkovich and Michael Shannon. Warner Bros has the movie scheduled to be released on June 18.