The Chainsmokers' Alex Pall and Andrew Taggart, seen here performing in Hollywood this past February, have two Top 10 hits on their hands, thanks in large part to their guest vocalists. Christopher Polk/Getty Images hide caption

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Marin Alsop and John Adams at a performance of Adams' Dr. Atomic at the Cabrillo Festival in 2008. Cabrillo Festival hide caption

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A Parting Gift — With Legs — For Marin Alsop At The Cabrillo Festival

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The 19-year-old rapper Desiigner, whose song "Panda" is one of the year's biggest hits, on stage at the Barclays Center in Brooklyn in July. Nicholas Hunt/Getty Images hide caption

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In The Race For The Song Of The Summer, 'Panda' Runs On A New Track

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Doc McKinney With Ali Shaheed Muhammad And Frannie Kelley

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J Dilla (front) is pictured here in 2005 at Madlib's studios in Echo Park, Los Angeles. Collaborators MED, Eothen Alapatt and Madlib (left to right) surround him. Roger Ericsson/Courtesy of the artist hide caption

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'A Lot Of Detective Work': Piecing Together J Dilla's 'The Diary'

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Over 40 Broadway performers gathered to sing "What The World Needs Now Is Love" at the Democratic National Convention on Wednesday night. Nicholas Kamm/AFP/Getty Images hide caption

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Sharon Jones and The Dap-Kings kick off their delayed 2014 tour at the Beacon Theater in New York. Jacob Blickenstaff/Starz Digital hide caption

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Soul Singer Sharon Jones: 'The Cancer Is Here, But I Want To Perform'

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Pakistani cyclists ride past a wall image of late Sufi musician Amjad Sabri alongside a street in Karachi on June 27, 2016. Asif Hassan/AFP/Getty Images hide caption

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After His Assassination, A Pakistani Artist's Family Keeps His Song Alive

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