Katy Perry's glamorous gown for Sunday's live taping of American Idol sparked a myriad of reactions, with even the host Ryan Seacrest joking that she had the dates for the Met Gala mixed up.

Katy Perry, the illustrious singer and American ... form-fitting off-the-shoulder dress. Among the images, one in particular ignited a flurry of speculation among fans, featuring Katy against ...

American Idol' Season 23 features judge Carrie Underwood. Here's what a stylist said about Underwood's clothing choices ...

Katy Perry surprises Rebecca Black with an on-stage tour invite for 'The Lifetimes Tour.' Fans can expect sci-fi visuals, ...

Rebecca, meanwhile, donned an equally short leopard print mini dress with a flared skirt. She wore black heeled knee-high boots, switching these for cream fluffy over-the-knee boots and a matching her ...