Singer Avi Kaplan of famed a cappella group Pentatonix really is "All About That Bass" in his cover of Meghan Trainor's hit single.
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In 2011, an unknown five-person a cappella group called Pentatonix won the TV show The Sing Off. On the show, talented vocal groups compete as they pe...
Having started out as a trio at Martin High School in Arlington, Texas, the group built up a following on YouTube with a cover of Lady Gaga's "Telephone."
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