The third image was probably what Russell Brand fell in love with. But, these other images are also of Katy Perry. John Mayer saw the real Katy Perry, too.
The bottom couple of pics are cute, as well as the overly made up one. The only one that REALLY took me aback was the top one. I had no idea the difference was so stark.
I noticed that, too. She has what I sometimes call The Meryl Streep/ Glenn Close factor. Like Streep and Close, when they are made up to be beautiful, they are and when they are made up as looking like death warmed over, they become that. In other words, they are very chameleon-like. Katy Perry is like that, as well.