10. Alejandro
190,000


I never thought it would do so well worldwide.

It reached the 500,000 mark on July 8.

http://www.mtv.com/news/articles/164...ady_gaga.jhtml


It sold 74,889 copies in the US so far.

38,932 - http://img833.imageshack.us/img833/2006/theremix1.jpg
16,056 - http://img835.imageshack.us/img835/7323/theremix2.jpg
11,036 - http://img375.imageshack.us/img375/5915/theremix3.jpg
8,865 - http://img26.imageshack.us/img26/4554/theremix4.jpg


And it's fair to say that it sold at least 100,000 copies worldwide since July 8. (not including the US).
Because it sold (for instance) 25,000 copies this week and only 8,000 of those were US sales.
Which means it's selling at a pace of 17,000 a week. And (July 8) is 7/8 weeks ago.
So... 17,000 x 7 = 119,000 copies.


500,000 + 74,889 + 100,000 = at least 674,889 copies.