So let's revisit the good times.
Like the time Katy found the ceiling more enthralling that whatever was being whispered into her ear.
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The time Katy had to pick some dandruff out of John's hair.
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Image by John Moore / Getty Images
The time they both made faces like this.
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Source: Alo Ceballos / FilmMagic
Their Halloween costumes.
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Source: Mark Hunter/The Cobra Snake