Vanessa Hudgens
The award show co-host set the bar for all her wardrobe changes to come, in a pale-pink, off-the-shoulder Marches dress.
Hailee Steinfeld
If this is what futuristic animal print looks like, we're excited for the next generation of fashion!
Ty Dolla Sign
The crisp-white jacket is perfectly tailored to his body, making the rest of the casual ensemble just as comfortable as it is cool.
Kate Beckinsale
The Underworld actress brought the fireworks, literally.
G-Eazy
The rapper looks as sexy as his lyrics.
Alexandra Daddario
The Baywatch lifeguard resuscitated red-carpet glam back to life with this beautiful Vivienne Westwood number. The high slit and off-the-shoulder detail gave it major sex appeal.
John Legend
No one does men's red-carpet fashion like the "All of Me" singer. The checked, double-breasted suit is already a winner, but the Gucci shoes add that extra dapper touch.
Rebecca Black
The "Friday" singer modernizes this '50s, nautical-inspired throwback by shortening the hemline and opting for a strapless silhouette with sexy neckline.
Sam Hunt
The bad-boy country crooner went classic in a traditional suit. A little too formal for a casual affair like the Billboard Music Awards? We think not.
Laura Marano
We can't take our eyes off the Disney actress' sequins and tulle skirt. Not to mention, the shoes with the gold details just made our must-have list.
Erin Lim
E! News' The Rundown host looks all kinds of sultry with a corseted lace top and white, wide-legged trousers.