Dave Grohl of the Foo Fighters performs at the 9:30 Club in Washington D.C. as part of the birthday celebration for Big Tony of Trouble Funk. Kyle Gustafson/Washington Post/Getty images hide caption

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Public Service Broadcasting performs at a Tiny Desk Concert in March 2014. Jim Tuttle/NPR hide caption

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Public Service Broadcasting: Tiny Desk Concert
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Lucius was just one of the many bands worth discovering at this year's CMJ festival. Becky Harlan/NPR hide caption

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Our Favorite Discoveries From The 2013 CMJ Music Festival
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