The Style at the iHeartRadio Awards Is as Loud as the Music

Taylor Swift chose a sparkling cutout Kaufman Franco minidress on the red carpet. She played up the geometric effect of her look with her eye-catching Tamara Mellon Mirage heels.

Hailee Steinfeld looked as fashionable as ever in her sheer-detail Spring '15 Christian Dior Haute Couture dress, complete with pleating and stripes. What's more? She rocked it over fierce, thigh-high Dior leather boots finished with a lucite block heel.

The watermelon shades of Zendaya's bodice were contrasted by the black and white embellished skirt of her dress. She completed her quirky-cool ensemble with hot-pink pumps.

Iggy Azalea went for a wild ensemble, mixing prints and textures. Her animal-patterned pants met a long-sleeve mesh top, and she added sleek accoutrements like a tailored vest and classic Stuart Weitzman mules.

The Modern Family star opted for a little white dress, letting the blue streaks in her hair and her accessories — a golden box clutch and printed pumps — make a real statement.

Jennifer Hudson played to the season's trends in a slinky fringe-embellished pre-Fall '15 Hervé Léger mini that she completed with patent leather pumps.

Justin Timberlake's striking cobalt blue Versace suit was enough to steal our hearts, but his best accessory was his iHeartRadio Innovator award.

The actress played up her metallic mini cutout dress with shiny gold Via Spiga pumps and a zigzag-print box clutch.

The actress's sleek white Yigal Azrouël dress was feminine, yet subtly sexy with its cutout details. Brittany opted for a monochrome look by finishing her design with white heels.

Look at the plaid! Nick Jonas made a statement in his Valentino suit on the red carpet.

Meghan was all about the satin and sparkle in a formfitting knee-length LBD, classic pumps, and a sequin-embellished cardigan.

Anna Camp chose a colorblock body-con Three Floor dress with a tiny slit, playing up the eye-catching colors of her design with purple pumps.

Chris Brown proves there's no style rules when it comes to the red carpet at the iHeartRadio awards. The singer cuffed his jeans and rocked a colorfully bold Dsquared2 leather jacket.

Greer Grammer made a sexy statement in a body-con two-tone minidress. She played up the sheer detail of her design with her strappy black peep-toe heels.

Gina Rodriguez wore a tailored vest as a dress! And can we just talk about those weaved-leather cap sleeves?