We brought you the news last week and now Mastodon have confirmed their involvement in what should be one of next years biggest Blockbusters. Check out our pics of Megan Fox showing her metal colours.

Mastodon will work on the score to the forthcoming Megan Fox movie ‘Jonah Hex’ with composer John Powell and director Jimmy Hayward. It’s also been confirmed by Blabbermouth that guitarist/vocalist Brent Hinds will make a small cameo in the movie, which is due for release in June 2010.

‘Jonah Hex’ is based on the DC comic series about a horribly scarred antihero who is “a rough-and-tumble gunslinger and part-time bounty hunter whose adventures always ended in blood” and will star Josh Brolin in the lead role, with support from John Malkovich, Megan Fox, Will Arnett, Michael Fassbender and Michael Shannon.