@JohnVidal
Youre comments become more and more pathetic with every read.
PRISM: 1 million US
ARTPOP: 610k

PRISM: 2 million worldwide
ARTPOP: 1.5 million worldwide

Spot the difference. I'll give you a hint, its over 500k. The excuses are pathetic as well. Artpop had a much stronger promo campaign then Prism did. Roar didn't get half the promo that Katy's lead single from Teenage Dream did. Even more pathetic is you trying to use Beyoncé because Gags is failing. Does Gags have 5 #1s from one album? Does Gags have 3 platinum albums in a row? Is she selling out the O2 arena 5 times on the same tour? Have several seats and continue to seethe for the rest of the year as Katy will continue to scalp Gags just like she did during the Teenage Dream era.