Katy is promoting the **** out of Prism, and it has two #1s so far and Beyonce has still outsold her with no promotion, and in less time. poor Katy. BEYONCÉ will be the bigger era easily. It will also have more longevity.
How much did RTW increase after her performance there? I wasn't tracking sales then, so I'm not sure.
Like I said. It would help propel album sales, regardless of the singles performance. I'm a Beyoncé stan, I don't fixate so much on the singles. I want her to keep selling ha albums based on her stage presence alone, which is probably why 4 managed to pull bigger first week sales than PRISM whilst flopping RTW.