http://www.racked.com/2016/4/3/11331...katy-perry-acm
there's already a think piece

IMPACT
Katy is completely unoffensive, a blank slate that can be dressed up for whatever need. (Even when Katy's costumes can crest over pastiche and into appropriation territory, it's kind of like, 'meh, at least it's not Iggy Azalea again.') Katy is palatable because outsized outfits lend her some personality.
Who knows? Maybe all this effort to appear with Dolly is a signal that as Katy ages out of pop stardom, she's planning to apply her chameleon nature toward a second life in country.
AN NY MAG tea