Top Digital Selling singles of 2009 Worldwide.
01 Poker Face: 9.8 million
02 Boom Boom Pow: 8.5 million
03 Im Yours: 8.1 million
04 Just Dance: 7.7 million
05 I Gotta Feeling: 7.1 million
06 Love Story: 6.5 million
07 Single Ladies: 6.1 million
08 Kiss Me Thru The Phone: 5.7 million
09 Heartless: 5.5 million
10 Circus: 5.5 million
http://www.ifpi.org/content/library/DMR2010.pdf