Move Over, Hot 100 — These Are the Best 25 Looks in Billboard Music Awards History

This canary yellow dress stands the test of time and is a true testament to Toni's sartorial prowess. Its simple column silhouette, bright hue, and minimalist spaghetti straps make it a classic.

The supermodel and creator of Modelland is no stranger to striking a pose in a gorgeous gown — but this black asymmetrical-strap Hervé Léger creation paired with a gold double cuff is the stuff fashion dreams are made of.

The former trio frequently wore coordinated looks on the red carpet, and this particular set of embroidered gowns is worth noting. Kelly Rowland went Old Hollywood with a strapless red gown and diamond collar; Michelle Williams showed a little leg in a black high-neck gown; and Beyoncé opted for a classic silhouette in bold yellow hue.

The singer was a vision in gold — pairing an intricately beaded-and-fringed Roberto Cavalli minidress with strappy floral-embellished heels and diamond-encrusted earrings.

Fun fact: This was Rihanna's first appearance at the Billboard Music Awards, and to commemorate the occasion, the singer wore a custom white Zac Posen minidress with gold strappy heels. Inspired by Posen's Spring 2007 collection, it featured flirty details including a pleated skirt and a dramatic plunging neckline.

Taylor surprised us in this striking red Elie Saab number. It wasn't just the sultry color that caught our eye, but also the lace-inset bodice that kicked up the singer's edge factor.

The singer chose a soft, shimmery lavender Blumarine gown that both simultaneously complemented and offset her dark purple waves.

Miley rocked a crisp white Jean Paul Gaultier blazer-turned-minidress with striped ankle-strap Christian Louboutin heels.

The country singer conjured serious princess vibes in this frothy pastel-hued Oscar de la Renta gown and embellished pink clutch.

Alicia struck an understated — albeit very sexy — note in a long-sleeve, form-fitting Azzedine Alaia Couture gown and Repossi rose-gold hoop earrings.

The singer chose a white Atelier Versace gown that was no ordinary white gown. Instead, it offered up a bit of quirk (and flash of leg) thanks to its zipper detailing, neon tubing, and sheer cutout right down the front of the bodice.

J Lo knows how to dress for a red carpet, and this gold Zuhair Murad gown serves as further proof. The body-skimming silhouette, skin-baring details, and flash appeal provided equal parts sexiness and glamour.

The singer channeled her inner Greek goddess in this white Fausto Puglisi number, which didn't skimp on eye-catching details: a thigh-high slit, midriff cutout, and oversize gold sun pendants accented throughout.

This was a serious departure from Taylor's usual red-carpet fare — and we were big fans of this white cutout jumpsuit from Balmain.

As co-host of the 2015 Billboard Music Awards, Chrissy was no stranger to outfit changes that night. But her first look of the evening — a '70s-inspired Balmain jumpsuit, complete with daring v-front, wide belt, and eye-catching stripes — was our favorite.

We love that Demi skipped the usual gown fare for an edgier rocker-chic look from Chanel, pairing a blue-and-black tweed blazer with wide-leg trousers, a black lace bodice, and fingerless black moto gloves.

Leave it to Zendaya to rock a two-piece, peach-tone Calvin Klein set on the red carpet. The matching triangle bra and floor-skmming maxi skirt combo was a daring, sexy choice.

Priyanka's blue Versace dress featured a stunning low draped back silhouette with only a single black strap to add a pop of contrast.

From every skin-baring angle, Ciara stunned in a slinky metallic Philipp Plein gown and ankle-strap Casadei heels.

In 2016 — 10 years since her first Billboard Music Awards red carpet — Rihanna put a new spin on sexy with this thigh-skimming vintage Thierry Mugler dress, jeweled Manolo Blahnik shoes, Borgioni diamond ear cuff, and Hearts on Fire diamond bracelets.

The actress, who hosted the 2017 Billboard Music Awards, chose this pale pink, bow-accented Marchesa gown as her first look of the evening.

Camila Cabello chose a sultry red gown from Jonathan Simkhai's Pre-Fall 2017 collection to walk the red carpet. The drama didn't stop there, though. She rounded out the look with a matching floor-skimming lace-and-sequin duster and oversize hoop earrings.

The Top Chef host chose a high-impact (read: dramatic thigh-high slit) gunmetal red-carpet look, courtesy of The Blonds.

We love an out-of-the-box approach to red-carpet dressing and Dua Lipa's 2018 look was just that. The flashy purple lamé Alexandre Vauthier dress, emerald-and-white Bulgari pendant necklace, and black platform heels proved to be an unexpected, but totally fun take on '80s glam.

The model turned heads in a gold long-sleeve, deep V-neck Alexandre Vauthier twist-front dress and Jennifer Fisher jewels.