Have you heard of Pentatonix?

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Pentatonix is a great new band that first started in 2012 and have come out with a new album. My favorite song of theirs is "The First Noel," which was also sung by Elvis Presley, who did choose to sing a lot of different types of music. But Pentatonix does an excellent job putting a new kind of spin on this song. Great vocalists.