Those songs with instant, catchy chorus tend to die quickly on the chart cause people become bored with them with every listen. I loved Happy when I first heard it, but I got tired with it quickly with its annoying lyrics and the song was everywhere made my hate for the song even deeper. One thing about SIGOD is it gets catchier with every listen which is a good thing. It needs to build up its hype slowly so it can slay on charts longer than WANEGBT did.
I like this part too. Do ya think that line is about John/Katy? I've said a couple of times here, Taylor loves men with Great hair. (Thick, Dark Hair).