Gary Trust, Pentatonix Covers Macklemore & Ryan Lewis' 'Thrift Shop' At Billboard HQ, Billboard (April 4, 2013): "Pentatonix's new video is a collaboration with violinist (and recent Chart Beat Meet & Great spotlight artist) Lindsey Stirling, a cover of Imagine Dragons' "Radioactive," the original of which has topped Alternative Songs for seven weeks and this week bounds 15–7 on the Hot 100. The reworked "Radioactive" has garnered 775,000 YouTube views, while Pentatonix's official YouTube channel has drawn an astounding 63 million views".