Sing-Off Stills

The Whiffenpoofs of Yale on the second season of "The Sing-Off." Comprising 14 senior Yale men, the "Whiffs" were founded in 1909 and are the world's oldest collegiate a cappella group. What began as a quartet has grown into a group of international acclaim with a world tour that spans three months and features dozens of foreign destinations. Their repertoire incorporates modern hits as well as classics as old as the group itself.

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