++25,000,000 singles sold

1. Womanizer | 3,159,000 (05/04/11)
2. Circus | 2,813,000 (05/04/11)

3. Till The World Ends | 2,112,000
4. 3 | 2,097,000 (05/04/11)
5. ...Baby One More Time | 1,797,000 ( including 1,411,000 physical singles)
6. Piece Of Me | 1,696,000 (05/04/11)
7. Gimme More | 1,650,000 (05/04/11)
8. Toxic | 1,625,000 (05/04/11 including 12.000 physical singles)

9. Hold It Against Me | 1,380,000
10. If U Seek Amy | 1,194,000 (05/04/11)
11. From The Bottom Of My Broken Heart | 801,000 (05/04/11 including 775,000 physical singles)
12. Break The Ice | 712,000 (05/04/11)
13. Stronger | 618,000(05/04/11 including 407,000 physical singles)

14. I Wanna Go | 545.000 (27/07//11)
15. Radar | 509,959 (05/04//11)
16. Everytime | 475,000 (01/20/11)
17. I'm A Slave 4 U | 448,186 (05/04/11 including 32.000 physical singles)
18. Oops!..I Did It Again | 426,000 (05/04/11 including (57.000 physical singles)
19. My Prerogative | 374,000 (05/04//11)
20. Do Somethin | 363,000 (05/04//11)
21. Me Against The Music | 310.000 (05/04/11 including (60.000 physical singles)
22. Lucky | 232,000 (05/04/11 including 6.000 physical singles)
23. S&M | 231,000 (estimates, need to be updated)
24. My Only Wish (This Year) | 177.000 (05/04//11)
25. Shattered Glass | 168,000 (05/04//11)
26. (You Drive Me) Crazy | 153,000 (05/04/11 including 28.000 physical singles)
27. I'm Not A Girl, Not Yet A Woman | 129.000 (02/13/11)
28. Toy Soldier | 123,000 (01/20/11)
29. Cinderella | 118,000 (01/20/11)
30. Outrageous | 117.000 ((10/14/10)
31. Sometimes | 93.000 (01/20/11 including 3.000 physical copies)
32. Kill The Light | 92.000 (01/20/11)
33. Ooh ooh Baby | 87,000 (01/20/11)
34. Freakshow | 81,000 (01/20/11)
35. Anticipating | 81,000 ( 02/13/11)
36. Get Naked | 75,000 (02/13/11)
37. Unusual You | 66,000 (02/13/2011)
38. Breathe On Me | 66,000 (02/13/11)
39. Out From Under | 61,341 (02/13/11)
40. Someday (I Will Understand) | 60,000
41. Boys | 54.000 (02/13/10)
42. Hot As Ice | 51,000 (02/13/11)
43. Don't Let Me Be The Last To Know | 38.000 (02/13/11)
44. Overprotected | 38.000
45. Born To Make You Happy | 36.000
46. I’ve just begun (having ly fun) | 35,000 (02/12/11)
47. Up N Down | 32 000
48. Mannequin | 31,000 (02/13/11)
49. Big Fat Bass | 30.000
50. Touch of my hand | 28,000 (02/13/11)
51. And Then We Kiss | 23.000

52. Drop Dead Beautiful | 22.000
53. Inside Out | 22.000
54. That’s where you take me | 17,000 (-2/13/11)
55. I Love Rock'N'Roll | 15.000 (02/13/11)
56. Shadow | 14,000 (02/13/11)
57. Mona Lisa | 14,000 (02/13/11)
58. Trouble for Me | 14,000
59. How I Roll | 13,000
60. Lace & Leather | 10.000
61. Gasoline | 10.000

Finally passed Radar ;)

HOW can "Cinderella" have sold that much?