Twin sisters Tegan and Sara Quin have been writing songs since they were 15 and independently released their first full-length album in 1999. Since then, they've produced seven studio albums. /Courtesy of the artist hide caption

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Clockwise from upper left: Tegan and Sara, Owen Pallett of Final Fantasy, Alessi's Ark, Fatoumata Diawara Courtesy of the artists hide caption

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Clockwise from upper left: Ramblin' Jack Elliott, Wanda Jackson, Tegan and Sara, Trombone Shorty.   hide caption

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