Katy Perry Instagrammed THIS PHOTO from American Idol.

Buy her exact outfit here:
Her top is from the Akoia Swim Osa Top and Shorts Set. You can buy it here: AKOIA SWIM
Her skirt is the Zimmermann Postcard Shell Fringe Skirt. Buy it here: BALTINI, CETTIRE, COLTORTI, FARFETCH, ITALIST, and NEIMAN MARCUS
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