Straight No Chaser perform 'Mary, Did You Know?' live on Megyn Kelly TODAY

Dec. 22, 201705:04

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Dec. 25, 2017 / 1:22 PM GMT / Source: TODAY

By Donna Freydkin

A cappella group Straight No Chaser first came together more than two decades ago, and today they’re a sensation. Live on Megyn Kelly TODAY, they sing a seasonal selection: “Mary, Did You Know?” from “I’ll Have Another… Christmas Album.”