There seemed to be a collective "Huh?" from Twitter when Bon Iver received a Song of the Year nomination for "Holocene," the first single from the band’s 2011 self-titled sophomore album. To the mainstream public, the indie folk-rock group was relatively unknown -- but that doesn’t make the band any less of a contender in the eyes of Grammy panelists. In fact, Justin Vernon and company are nominated in three additional categories this year, albeit surrounded by stiff pop-centric competition. While the other song of the year nominees have garnered plenty of commercial success for their respective songs, Bon Iver has been widely hailed by critics as one of the best albums of 2011, with Vernon’s songwriting skills honing in on a bare, introspective excellence. And if last year’s multiple wins by fellow indie-rockers Arcade Fire is any indication of what’s to come, “Holocene” should take the win for this one.