It's weird to imagine her singing it but her voice would have been processed and made to fit the song,so.I think it would have had Wide Awake type of success,atleast in the US.I guess that's similar success,I can see Wide Awake eventually selling 2 -3 million like TEOG.
Giving me Firework teas in a bad way. I mean, when she sings "baby you're a fireWOORKK" I could almost see the veins from Katy's neck straining just to reach the notes. And with the edge of glory, those veins might just burst so let's not. Point is, she cannot reach the notes for TEOG