The Sound of Music
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Peter Hollens is an American pop singer-songwriter and producer. He has been heavily involved in a cappella music since he cofounded the University of Oregon's award-winning a cappella group On The Rocks in 1999. In 2010, Peter was featured on NBC's "The Sing Off," receiving acclaim from the judges for solo performances with On The Rocks. He records and produces from his home studio in Eugene, Oregon and recently recorded for Song and Epic Records.