Rock behemoths Mastodon have fifty t-shirts to give away to DiS readers to celebrate the imminent release of their new album Crack The Skye.

Here's the dealio, Mastodon have made a limited edition t-shirt, which DiS readers can get for free by entering the code orb9999 at mastodontshirtoffer.com. So yeah, that's it, enter the code and you'll hopefully be one of 50 people who get a free t-shirt!

For more about their new album visit mastodonrocks.com.