BEYONCE started much better than PRISM and already outsold it. But now it keeps falling and is already below PRISM in almost all charts WW (in US and UK they are very close).
This week according to Mediatraffic BEYONCE sold 32k WW in its 17th week while PRISM sold 31k WW in its 24th week.
Total sales according to Mediatraffic: BEYONCE - 3,164,000 PRISM - 2,719,000
So will BEYONCE sales rebound somehow and it will stay above PRISM or PRISM will have more longevity and could even outsell BEYONCE in the end?

Discuss and keep it cute please

PRISM will have more longevity because Katy Perry has at least 2 more #1's there.

Buy Birthday on iTunes!

katy duh she will be promoting prism for another year

PRISM will outsell BEYONCÉ. That's common knowledge unless you're a Bey stan in denial.

Both eras are HUGE anyway.

Considering PRISM has more than one hit I'll go with that. Both are doing great though.

PRISM

Right now PRISM for sure, unless Bey decides to actively start promoting

doesn't katy have a huge hits currently falling slowly on radio?? and yet do the same number as the Partition-supported album ?? smh

Once Bey starts promoting, it's over. Plus she has already outsold her despite coming out months later and with no #1 hits needed!

First Beyonce didn't need promo according to ATRL, now all of a sudden she does need it?
Katy just has more cards to play during the PRISM era than just a surprise release.

,

Prism was released first, had two number one singles and about 20 live performances but still hasn't outsold Beyonce. When Beyonce starts promoting her sales will increase, so I'll go with her.

But Grammys performance did nothing for BEYONCE sales despite it being the biggest possible promo slot?