Sharper Than Ever: A Cappella is YouTube's New Favorite Obsession

By Peter Hoare
Fuse News
January 10, 2014
Prior to Pitch Perfect, there was Indiana University's favorite a capella group - Straight No Chaser. After a decade-old performance of theirs went viral on YouTube, the guys found themselves signed to a major label.
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There's also a video included with the article.