It's quite impressive when a musician can still push millions and millions of albums even without the help of the biggest music market in the world, the U.S. Where does your fave rank?
IMO anything above 10m is REALLY impressive, it speaks to the artists global Power. 21 at 19m
The Fame / Monster: 16.5 million worldwide
- 5.6m US
...BOMT: 15M US - 35M WW
=
20M
OIDIA: 10M US - 25M WW
=
15M
Britney: 8.5M US - 17.5M WW
=
9M
ITZ: 10M US - 25M WW
=
15M
GH MP: 2.5M US - 10M WW
=
7.5M
Blackout: 5M US - 10M WW
=
5M
Circus: 2.5M US - 7.5M WW
=
5M
FF: 2.5M US - 5M WW
=
2.5M
BJ: 0 US - 0 WW
=
0
MOST GLOBAL POP STAR OF ALL TIME
...BOMT: 15M US - 35M WW
=
20M
OIDIA: 10M US - 25M WW
=
15M
Britney: 8.5M US - 17.5M WW
=
9M
ITZ: 10M US - 25M WW
=
15M
GH MP: 2.5M US - 10M WW
=
7.5M
Blackout: 5M US - 10M WW
=
5M
Circus: 2.5M US - 7.5M WW
=
5M
FF: 2.5M US - 5M WW
=
2.5M
BJ: 0 US - 0 WW
=
0
MOST GLOBAL POP STAR OF ALL TIME
...BOMT: 15M US - 35M WW
=
20M
OIDIA: 10M US - 25M WW
=
15M
Britney: 8.5M US - 17.5M WW
=
9M
ITZ: 10M US - 25M WW
=
15M
GH MP: 2.5M US - 10M WW
=
7.5M
Blackout: 5M US - 10M WW
=
5M
Circus: 2.5M US - 7.5M WW
=
5M
FF: 2.5M US - 5M WW
=
2.5M
BJ: 0 US - 0 WW
=
0
MOST GLOBAL POP STAR OF ALL TIME
The inflated sales. 8M? Lol BTW sold 4M (and I'm generous) outside of US, considering it sold less than 2M in Europe and that plus Australia, Japan and Canada's sales is 3.3M MAX.
Where did it sell these +2.5M? Venus?
She must be the most global superstar EVER 
