Katy’s sequin striped dress on American Idol
Striped Sequined Mini Dress by Ashish at Net A Porter, $1970
Katy’s fringe drop earrings on American Idol
Fringe Drop Earrings by Atelier Swarovski at Bloomingdales, $499
Katy’s star earrings on American Idol
Crystal Star Clip-On Earrings by Kenneth Jay Lane at Lord & Taylor, $125
Katy Perry’s blue metallic trench coat on American Idol
Metallic Vinyl Trench Coat by Marc Jacobs at My Theresa, $300 (was $501)