International Smile is an easy single choice. You just have to radio edit it get rid of the tranny narrator.
Katy won't smash with any slow ballad so don't bother. It Takes Emeli Sandé to Make You Go #1 should close the era. It's simple enough lyrically for dumb people to like it and yet the feel of the song gives an air of credibility. Of course no 13 year old fomo is thinking about credibility but still.
