According to Nielsen's 2011 year-end stats, Rihanna has become the top-selling digital artist of all-time.
Furthermore, Rihanna has produced 20 Hot 100 top-10 singles in the quickest time ever, beating out Madonna.
The full list (via EW):
Artist (downloads)
1. Rihanna (47,571,000)
2. Black Eyed Peas (42,405,000)
3. Eminem (42,290,000)
4. Lady Gaga (42,078,000)
5. Taylor Swift (41,821,000)
6. Katy Perry (37,620,00)
7. Lil Wayne (36,788,000)
8. Beyonce (30,439,000)
9. Kanye West (30,242,000)
10. Britney Spears (28,665,000)












