Katy Perry's gold bamboo hoop earrings and smile rainbow sweater from American Idol

Katy Perry Instagrammed THIS clip and American Idol Instagrammed THESE photos from the show.

Buy her exact outfit here:

Katy's earrings are the Lana Jewelry Uptown Wide Bamboo Hoops. These earrings have also been spotted on Demi Lovato and Kelly Clarkson! Buy them here: LANA JEWELRY

Her sweater is the Stella McCartney Smile Rainbow Jumper. This sweater has also been worn by Kate Hudson, Ellie Goulding, and Jodie Comer, as seen below! Buy it here: FARFETCH, NEIMAN MARCUS, NET-A-PORTER, NORDSTROM, and STELLA MCCARTNEY

Get the look for less here:

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