Mastodon are one of the top American heavy metal acts of the last two decades, marrying complicated guitar riffs with clean production and vocals: Perfect for those who love heavy music but could stand less screaming. Fans of the band may remember their impossibly nerdy "High Road" music video (complete with geeks live action role playing, or as it's better known, LARPing). The Atlanta group's sense of humor comes through again in the video for their fantastic single, "The Motherload." There's so much twerking it gives both Miley Cyrus and Nicki Minaj a run for their money, all while the long-haired boys shred. Strange—but great—stuff.