On the red carpet: Beyoncé, Sienna Miller, Katy Perry, Ashley Madekwe

Beyoncé wore a sheer Gattinoni Couture dress studded with jais stones to the Tidal X:1015 benefit concert in New York. 

The design’s inspiration — a photo of a woman who’s skin is ‘scarified,’ or artfully scarred — is new to me. The image appears on Beyonce.com.

Sienna Miller stepped out in a challenging Prada suit for the New York premiere of The Lost City of Z. This next-season ensemble was styled exactly as she’s wearing it but with a clashing bag and shoes. She sells it better, matching her lipstick and sandals to the top’s red piping.

Katy Perry dazzled in Marchesa at the 2016 Children`s Hospital LA ‘Once Upon a Time’ gala. This look has a lot going on, even before she added sparkly silver platforms and big earrings, but the benefit’s name does suggest a fairytale-princess theme.

Ashley Madekwe chose a swan-detailed minidress for the 7th Annual Veuve Clicquot Polo Classic in Los Angeles. The pretty dress is by Reformation, an eco-friendly Californian brand, and the actress paired it with hibiscus red wrap sandals from Gucci.