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One Direction

One Direction, a five-member English-Irish boy band, took North America by storm, selling more than 15 million albums and inspiring more than a few comparisons to the "British Invasion" of the 1960s. (Slaven Vlasic/Getty Images)

Year in Review 2012: Obsessions

Here are the top 10 obsessions that, as ranked by their search volume and percentage spike compared with 2011 on Yahoo!.