Leave it to the music biz to turn out an outrageous red carpet at the Billboard Music Awards [1]. On Sunday night, the arrivals skewed toward attention-getting and sent tongues wagging with one common denominator: the sexiest looks were all sheer. Stars like Hailee Steinfeld, Olivia Munn, and Rita Ora [2] slipped into see-through looks, pretty underthings, and not much else.

Read on to see the looks that left a lasting impression.

Rita Ora

The singer stepped out in a dramatic waist-cinching top and sheer black bottoms by Francesco Scognamiglio.

Olivia Munn

Olivia flashed a look at her underthings in a black lace halter look by Redemption.

Lea Michele

The actress put it all out there in this David Koma creation.

Hailee Steinfeld

The actress/singer flashed her coordinating underthings in a see-through, body-hugging David Koma sheath.