2009: The year grime began to pay | Dizzee Rascal | The Guardian
Where did the love go? In today's black pop music, love songs are harder to find — The Undefeated
BBC Radio 2 - The Most Played Tracks of The Decade - The Top 40 Most Played Tracks of the Decade: 2010-2020
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Top 100 Pop Song Chart for 2009
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iTunes Top Selling Songs and Albums of 2009
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Free Music Charts März/April 2009 vom 24.03.2009 : Free Download, Borrow, and Streaming : Internet Archive
The REAL Death of the Music Industry
Every Official Christmas Number 1 ever
A fan of pop star Michael Jackson poses in front of his posters during a memorial in Taipei July 5, 2009. Jackson's death on June 25 after suffering cardiac arrest at his
Visualizations - Evolution of Pop Music
Radio & Records Top Pop Hits 1973-2009 - Record Research
All The Official Singles Chart Number 1s
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michael-jackson – Chart-History
The Top 100 Tracks of 2009 | Pitchfork
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The Best Music Of 2009 : NPR
Lady GaGa to The Black Eyed Peas: Number One Songs From 2009 | Billboard – Billboard
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Charts Pur Pop & Wave (2009, CD) - Discogs
All The Official Albums Chart Number 1s
List of UK Singles Chart number ones of the 1990s - Wikipedia
