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Pentatonix
The Sing-Off Contestants
a cappella
covers
Straight No Chaser
acapella
Anna Kendrick
Ben Folds
Brandi Carlile
On the Rocks
Street Corner Symphony
The Black Keys
Tufts University Beelzebubs
University of Rochester Yellowjackets
Urban Method
a capella
vocal
80s
A. Habershon and C. Gabriel
AC/DC
Academical Village People