After combing through Nielsen SoundScan's archives, here is a look at the artists (including lead and featured billings) who have tallied the most million-selling downloaded songs in the digital era:
Rank,Total million-selling downloads, artist, top-seller (in millions)
#1.24, Lil Wayne, "Lollipop" (4.3)
#2.19, Rihanna, "Love the Way You Lie" (5.1)
#3.17, Eminem, "Love the Way You Lie" (5.1)
#4.15, T-Pain, "Low" (6)
#5.14, Taylor Swift, "Love Story" (5.1)
#6.12, the Black Eyed Peas, "I Gotta Feeling" (7.5, the all-time best-selling download)
#7.10, Britney Spears, "Womanizer" (3.2)
#8.9, Beyonce, "Single Ladies (Put a Ring on It)" (4.7)
#8.9, Kelly Clarkson, "My Life Would Suck Without You" (2.5)
#8.9, Ke$ha, "TiK ToK" (6)
#8.9, Lady Gaga, "Poker Face" (6.4)
#8.9, Ludacris, "Break Your Heart" (3.5)
http://www.billboard.com/column/char...05379792.story
ETA: Sorry you can lock this !! It's already been posted. Thanks 
