E.T.'s production was originally meant for Three 6 Mafia, a well known urban group, so yes, the production is actually undoubtedly urban influenced. It's a legit fact.
Dr Luke is different from Max Martin. The difference is that Max Martin is a god while Dr Luke is a smelly old man that collects coins near his temple.
Still funny how Katy's "ended" career is on par with Taylor and way above Gaga, and ALL she's doing is touring rn.
If you consider Prism to be her career "end", then it's in no way on par with Taylor's, since 1989 doubled Prism's sales with ease. The difference in singles sales is not big enough in Katy's favor to override the huge difference in album sales. (And let's not compare the tours when the 1989 one barely started with dates and legs yet to be announced).