Katy Perry's black headband, flower earrings, and sequin crochet dress from American Idol

Katy Perry Instagrammed THIS video from the set of American Idol.

Her headband is the Lele Sadoughi Glossy Black Padded Headband. Buy it HERE and HERE.

Her earrings are the Alessandra Rich Faux-Pearl Flower Earrings. Buy them HERE.

Her dress is the Ashish Faux pearl-embellished sequined georgette mini dress. Buy it HERE. (Get the look for less HERE, HERE, and HERE!)

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