I am worried about DU underperforming. The common feature of Katy hits is that they always have undeniably fantastic, memorable, infectious choruses, and DU just doesn't. Great verses, lyrics, etc, but it's missing that key Katy smash hit quality.
I hope they edited the song to fix that issue and add more punch even if the lyrics are the same.
I dunno how to react to a Katy song not reaching the Top 10 anymore.