Carriera americana di LADY GAGA:

46,322,000 singoli digitali venduti.
8,817,000 copie ALBUM.

SINGOLI USA:
Poker Face 6,987,000
Just Dance 6,809,000
Bad Romance 5,401,000
Born This Way 3,918,000.
Paparazzi 3,388,000
Telephone 3,268,000
The Edge Of Glory 2,792,000
LoveGame 2,558,000.
Alejandro 2,473,000
You And I 2,181,000
Judas 942,000
Starstruck 781,000

ALBUM USA:
The Fame 4,525,000
Born This Way 2,298,000
The Fame Monster (EP) 1,566,000
The Remix 302,000.

Carriera americana di Katy Perry:
49,897,000 singoli digitali venduti.
4,333,000 copie ALBUM

SINGOLI USA:
Firework 6,341,000
E.T. 5,606,000
California Gurls 5,542,000
Hot N Cold 5,414,000.
Teenage Dream 4,573,000
I Kissed A Girl 4,444,000
Last Friday Night (T.G.I.F.) 3,470,000.
Wide Awake 3,074,000
Part Of Me 2,662,000
The One That Got Away 2,617,000.
Waking Up In Vegas 2,211,000
Thinking Of You 1,079,000
Peacock 643,000.

ALBUM USA:
Teenage Dream 2,749,000
One of the Boys 1,529,000
MTV Unplugged (EP) 55,000

E fu così che dopo tanto sterile chiacchericcio, arrivarono i numeri ufficiali.
Solo e soltanto americani, ma incontrovertibili.
Gaga vs. Perry.
A poche ore dai VMA 2013, uno scontro fatto di cifre e vendite spaventose. In attesa di Prism ed Artpop.