People.com Lifestyle Style Billboard Music Awards 2016: All the Best and the Boldest Looks from the Red Carpet Stars went sparkly, sporty and (of course) super-sexy for the Las Vegas awards show By Catherine Kast Published on May 23, 2016 10:35 PM Share Tweet Pin Email 01 of 22 ZENDAYA John Shearer/Getty Zendaya, a minimalist? We never thought we'd see the day! The singer's bra top and maxi skirt ensemble (by Calvin Klein Collection - plus Montblanc and John Hardy bangles and an Anne Sisteron necklace), is classic-chic at its coolest. 02 of 22 RIHANNA David Becker/Getty Her hit song is called “Work,” and apparently so is her self-imposed dress code for the evening! We kid: This understated dress (vintage Thierry Mugler from Alexandra New York, worn with Manolo Blahnik mules and low-key jewelry by Neil Lane, Borgioni, Hearts on Fire and Le Vian) is just further evidence that RiRi makes her own fashion rules. 03 of 22 ARIANA GRANDE Gilbert Flores /Broadimage A dangerous dress for a “Dangerous Woman”? Grande stumbled a bit on the red carpet in this sporty-chic Atelier Versace dress (plus Giuseppe Zanotti platforms and Neil Lane jewelry) but looked fab doing it. 04 of 22 GWEN STEFANI Frazer Harrison/Getty The naked dress isn't going anywhere! Stefani didn't walk the red carpet before the show, but debuted this Falguni & Shane Peacock look during her performance with boyfriend Blake Shelton. 05 of 22 CELINE DION Chase Rollins/AFF Dion brings the house down (and to tears) while accepting the “Icon Award” in this elegant golden one-shoulder gown with a gathered hip detail and mirrored gold platforms. 06 of 22 BRITNEY SPEARS Steve Granitz/WireImage The star's first get-up of the night (by Reem Acra) has everything (trend-wise): Lace, sparkle, visible undies, statement shoes by Schutz and a major train. And we can't help but wonder: It anyone else getting “I'm a Slave 4 U” video throwback vibes with that thong strap detail? 07 of 22 MILA KUNIS Lester Cohen/Getty Ballerina chic! The star's sculptural Zuhair Murad Haute Couture mini (worn with Neil J. Rodgers heels and Anita Ko earrings) and sleek bun are reminiscent of Kunis's Black Swan character. 08 of 22 CIARA Broadimage/REX/Shutterstock The singer (and the night's co-host!) called this “chain dress” by Philipp Plein (her first of seven that night!) “simple,” because for Ciara, something this slinky and skin-baring is totally standard. (If you can look past the miles of skin, those shoes are Casadei.) 09 of 22 JESSICA ALBA Richard Shotwell/Invision/AP Is the actress channeling her Dark Angel days? This black lace Zuhair Murad mini with sassy over-the-knee boots and Cartier jewelry (plus a seemingly deeper brown 'do) are all pointing to “yes.” 10 of 22 KESHA David Becker/Getty She's a little bit… country? The popstar's purple suit has some Western touches, something we're not used to seeing on the gal who's all about “glitter on the floor”— and on her outfits. But the suit had a serious connotation: She wrote on Instagram that the design is “an homage to both Bob Dylan and Prince.” 11 of 22 KATE BECKINSALE John Shearer/Getty The actress went for simple yet standout in a white plunging Hamel gown with draped shoulder details, Butani earrings and a quirky Anya Hindmarch clutch. 12 of 22 DEMI LOVATO Brian To/Shutterstuck/REX/Shutterstock The singer mixes different textures (tweed, lace and leather) to create a modern rock 'n roll look. 13 of 22 PRIYANKA CHOPRA David Becker/Getty The Quantico star is all about the bright cobalt color of this Atelier Versace gown from the brand's “athletic couture”-themed Fall 2016 collection. “We thought we'd contrast the pink carpet,” she said. 14 of 22 KEKE PALMER John Shearer/Getty Palmer says she fell in love with this skin-tight latex maroon House of Harlow 1960 dress (worn with St. John and Atelier Swarovski jewelry) the moment she saw it. “But now I'm sweating from the inside,” she said on the red carpet. “And I don't know what's going on with that!” 15 of 22 LUCY HALE Richard Shotwell/Invision/AP The Pretty Little Liars star's Zuhair Murad look (worn with Giuseppe Zanotti Design heels and a Rauwolf clutch) is more than meets the eye: That purple lace top is actually a bodysuit! 16 of 22 KELLY ROWLAND John Shearer/Getty Baroque-style beading plus a modern high-neck silhouette (in her Labourjoisie gown) equals regal red carpet glamour. 17 of 22 KRISTEN BELL Lester Cohen/Getty Bell's scalloped-edge Jonathan Simkhai one piece (worn with Lorraine Schwartz jewels) was one of the only jumpsuits of the night, which kind of a big deal for Hollywood these days. 18 of 22 MEGHAN TRAINOR Richard Shotwell/Invision/AP Trainor's not trying to blend in after her on-stage fall on The Tonight Show! She stands out in a blingy fitted Michael Costello dress that appears to change colors depending on the angle, plus Le Vian jewels 19 of 22 CHANTEL JEFFRIES Rex The model, YouTuber and PeopleStyle guest Snapchatter wowed in a custom Thomas Wylde black leather dress, leather-and-silk choker with chains and crosses and heels. 20 of 22 HEIDI KLUM David Becker/Getty With a netted neckline and a lace overlay, the supermodel's calf-length dress vibes both naughty and nice. (She finishes the look with strappy heels and Lorraine Schwartz jewelry.) 21 of 22 IDINA MENZEL John Shearer/Getty Menzel's little black Michael Costello dress features an of-the-moment detail: shoulder cutouts! (The better to draw attention to those giant Jacob & Co. earrings – worn with Rene Caovilla sandals and an Edie Parker clutch.) 22 of 22 LAVERNE COX Richard Shotwell/Invision/AP The actress knows how to make an entrance – and she does just that in this plunging Michael Costello gown with major train and long sleeves (scorching-hot Vegas weather be damned) plus Ofira jewels.