1 / 15

Kelly Rowland - Just when we thought the desert couldn’t get any hotter, the stars proved us wrong Sunday night at the 2014 Billboard Music Awards in Las Vegas. Read on to see who smoldered in Sin City. By Britt Middleton Working her new hairdo, the singer flaunts her assets in a sexy satin bra top and high-waist skirt. (Photo: Frazer Harrison/Getty Images)

2 / 15

Jennifer Lopez - J.Lo, who received the Icon Award this year, kicks things off right in a sheer scarlet Donna Karan dress, strappy Jimmy Choo sandals and a bangin’ blowout. If you ask us, Jenny from the Block never looked better. (Photo: Frazer Harrison/Getty Images)

3 / 15

Nicki Minaj - The MC adds another great make-under moment to her repertoire, looking flawless in a black Alexander McQueen cutout gown, pretty soft waves and gold cuffs.(Photo: Frazer Harrison/Getty Images)

4 / 15

Wiz Khalifa and Amber Rose - This couple’s eclectic style can’t be missed. Wiz pairs his crisp button-down with distressed denim, while his wife goes monochromatic, adding bold square frames for extra edge.  (Photo: Frazer Harrison/Getty Images)

Photo By Frazer Harrison/Getty Images

5 / 15

Kendall and Kylie Jenner - Kendall gives us a major model moment in a sophisticated jumpsuit and silver heels, while little sis Kylie steps out in a curve-hugging white frock and matching lace-up pumps.(Photo: Kevin Mazur/Billboard Awards 2014/WireImage)

6 / 15

2 Chainz - Do we sense a trend here? The rapper does the “white thing” in a light colored ensemble, adding a thick gold chain and leopard Giuseppe Zanotti sneakers to make it pop.  (Photo: Frazer Harrison/Getty Images)

7 / 15

Iggy Azalea - The Aussie-born beauty is as fancy as ever in her long-sleeved lace Zuhair Murad gown, letting her flowing blonde mane be her only accessory. (Photo: Bryan Steffy/Billboard Awards 2014/Getty Images for DCP)

8 / 15

Estelle - Orange and blue has never looked so good. The British singer sets a new trend in her colorblock gown, finishing with a silver envelope clutch.  (Photo:Frazer Harrison/Getty Images)

9 / 15

Shakira - Rocking a mixed textured sapphire frock, the Columbian singer’s hips certainly don’t lie. Hot! (Photo: Frazer Harrison/Getty Images)

10 / 15

Floyd Mayweather Jr. - Dare we say he’s a knockout? The boxer goes sleek in head-to-toe black, save for his silver-rimmed aviators. (Photo: Bryan Steffy/Billboard Awards 2014/Getty Images for DCP)

11 / 15

Chrissy Teigen and John Legend - We can’t say it enough: we love this couple’s style! Chrissy makes a statement in her strapless Fyodor Golan dress and Giuseppe Zanotti pumps, while her crooner hubby keeps coordinated in a Gucci suit jacket and matching shirt.(Photo: Frazer Harrison/Getty Images)

12 / 15

Jordin Sparks - Jordin can’t help but shine in her sequin Michael Costello halter dress, teamed with simple ankle-strap sandals and a cute braided updo. (Photo: Frazer Harrison/Getty Images)

13 / 15

Jason Derulo - Meanwhile, Jordan’s boo epitomizes cool, pairing his graphic tee with a satin bomber, slim denim and leather high-tops. (Photo: Frazer Harrison/Getty Images)

14 / 15

Ludacris - Just call him the host with the most...style, that is. Luda, who is hosting this year's awards, strikes a pose in a sharp navy suit, adding in a dash of color with a whimsical striped shirt and tie.(Photo: Frazer Harrison/Getty Images)

15 / 15

Rocsi Diaz - The Entertainment Tonight correspondent sticks to the classics, teaming her cutout LBD with a fiery red lip and twisted topknot. (Photo: Frazer Harrison/Getty Images)