Billboard Year-End Hot 100 singles of 2009 - Wikipedia
Every Official Christmas Number 1 ever
2009 Top 25 Billboard Hits | Billboard hits, Billboard songs, Music charts
michael-jackson – Chart-History
iTunes Top Selling Songs and Albums of 2009
F*** you, I won't do what you tell me': How political protest stormed the pop charts | The Independent
Billboard Year-End Hot 100 singles of 2009 - Wikipedia
2009: The year grime began to pay | Dizzee Rascal | The Guardian
List of UK Singles Chart number ones of the 2000s - Wikipedia
92% of Top Ten Billboard Songs Are About Sex - The Atlantic
Susan Boyle rules 2009 music charts - BelfastTelegraph.co.uk
Top Ten Songs Of Each Year 2000-2009
Where did the love go? In today's black pop music, love songs are harder to find — The Undefeated
The REAL Death of the Music Industry
Visualizations - Evolution of Pop Music
Billboard Year-End Hot 100 singles of 2009 - Wikipedia
FABER MUSIC TOP OF THE CHARTS 2009 - PVG - Woodbrass.com
Rage Against the Machine beats X Factor's Joe to Christmas No 1 | Rage Against the Machine | The Guardian
All The Official Singles Chart Number 1s
Number one songs in the UK pop charts in 2009
List of UK Singles Chart number ones of the 1990s - Wikipedia
BBC Radio 2 - The Most Played Tracks of The Decade - The Top 40 Most Played Tracks of the Decade: 2010-2020
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
Lady GaGa to The Black Eyed Peas: Number One Songs From 2009 | Billboard – Billboard
Free Music Charts März/April 2009 vom 24.03.2009 : Free Download, Borrow, and Streaming : Internet Archive
The Best Music Of 2009 : NPR
