PHOTOS: Red Carpet Fashion at the Billboard Music Awards

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Honoree Janet Jackson attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)

Recording artist Taylor Swift attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)

Recording artist Nick Jonas attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)

Recording artists Alex Pall (L) and Andrew Taggart of musical group The Chainsmokers attend the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)

Recording artist French Montana attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)

Recording artist Camila Cabello attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Matt Winkelmeyer/Getty Images for dcp)

Recording artist Halsey attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)

Recording artist Jennifer Lopez attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Matt Winkelmeyer/Getty Images for dcp)

John Legend attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)

TV personality Padma Lakshmi attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Matt Winkelmeyer/Getty Images for dcp)

Actor Mila Kunis attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)

Model Hailey Baldwin attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Matt Winkelmeyer/Getty Images for dcp)

Olympic snowboarder Chloe Kim attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Matt Winkelmeyer/Getty Images for dcp)

Prince Jackson attends the 2018 Billboard Music Awards 2018 at the MGM Grand Resort International on May 20, 2018 in Las Vegas, Nevada. (Photo by LISA O'CONNOR / AFP) (Photo credit should read LISA O'CONNOR/AFP/Getty Images)

Recording artists Rhona Bennett, Terry Ellis, and Cindy Herron of musical group En Vogue attend the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)

Recording artist Lil Pump attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)

Actor Alison Brie attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)

Recording artist Kesha attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Matt Winkelmeyer/Getty Images for dcp)

DJ Khaled attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)

TV personality Tyra Banks attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Matt Winkelmeyer/Getty Images for dcp)

LAS VEGAS, NV - MAY 20: Recording artist Christina Aguilera attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)

Recording artist Zed attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)

Recording artist Bebe Rexha attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Matt Winkelmeyer/Getty Images for dcp)

Recording artist Maren Morris attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Matt Winkelmeyer/Getty Images for dcp)

Recording artist Khalid attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)

Actor Alyson Stoner attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Matt Winkelmeyer/Getty Images for dcp)

Actor Chrissy Metz attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Matt Winkelmeyer/Getty Images for dcp)

Actor Darren Criss attends the 2018 Billboard Music Awards 2018 at the MGM Grand Resort International on May 20, 2018 in Las Vegas, Nevada. (Photo by LISA O'CONNOR / AFP) (Photo credit should read LISA O'CONNOR/AFP/Getty Images)

Singer/songwriter Demi Lovato attends the 2018 Billboard Music Awards 2018 at the MGM Grand Resort International on May 20, 2018 in Las Vegas, Nevada. (Photo by LISA O'CONNOR / AFP) (Photo credit should read LISA O'CONNOR/AFP/Getty Images)

Recording artist Bhad Bhabie attends the 2018 Billboard Music Awards 2018 at the MGM Grand Resort International on May 20, 2018 in Las Vegas, Nevada. (Photo by LISA O'CONNOR / AFP) (Photo credit should read LISA O'CONNOR/AFP/Getty Images)

Recording artist Chantel Jeffries attends the 2018 Billboard Music Awards 2018 at the MGM Grand Resort International on May 20, 2018 in Las Vegas, Nevada. (Photo by LISA O'CONNOR / AFP) (Photo credit should read LISA O'CONNOR/AFP/Getty Images)

Recording artist Bonnie McKee attends the 2018 Billboard Music Awards 2018 at the MGM Grand Resort International on May 20, 2018 in Las Vegas, Nevada. (Photo by LISA O'CONNOR / AFP) (Photo credit should read LISA O'CONNOR/AFP/Getty Images)

Host Kelly Clarkson attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)

Boy Band BTS attends the 2018 Billboard Music Awards 2018 at the MGM Grand Resort International on May 20, 2018 in Las Vegas, Nevada. LISA O'CONNOR/AFP/Getty Images

Recording artist Luis Fonsi (L) and model Agueda Lopez attend the 2018 Billboard Music Awards 2018 at the MGM Grand Resort International on May 20, 2018 in Las Vegas, Nevada. LISA O'CONNOR/AFP/Getty Images

Recording artist Mason Ramsey attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)

Recording artist Ne-Yo attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)

Actor Jenna Dewan attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)

Recording artist Normani attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)

Recording artist Julia Michaels attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)

Recording artist Jesse McCartney (L) and Katie Peterson attend the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)

Recording artist Shawn Mendes attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Matt Winkelmeyer/Getty Images for dcp)

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Honoree Janet Jackson attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)

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Recording artist Taylor Swift attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)

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Recording artist Nick Jonas attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)

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Recording artist French Montana attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)

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Recording artist Camila Cabello attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Matt Winkelmeyer/Getty Images for dcp)

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Recording artist Halsey attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)

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Recording artist Jennifer Lopez attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Matt Winkelmeyer/Getty Images for dcp)

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John Legend attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)

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TV personality Padma Lakshmi attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Matt Winkelmeyer/Getty Images for dcp)

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Actor Mila Kunis attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)

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Model Hailey Baldwin attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Matt Winkelmeyer/Getty Images for dcp)

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Olympic snowboarder Chloe Kim attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Matt Winkelmeyer/Getty Images for dcp)

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Recording artist Lil Pump attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)

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Actor Alison Brie attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)

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Recording artist Kesha attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Matt Winkelmeyer/Getty Images for dcp)

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DJ Khaled attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)

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TV personality Tyra Banks attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Matt Winkelmeyer/Getty Images for dcp)

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Recording artist Zed attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)

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Recording artist Bebe Rexha attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Matt Winkelmeyer/Getty Images for dcp)

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Recording artist Maren Morris attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Matt Winkelmeyer/Getty Images for dcp)

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Recording artist Khalid attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)

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Actor Alyson Stoner attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Matt Winkelmeyer/Getty Images for dcp)

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Actor Chrissy Metz attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Matt Winkelmeyer/Getty Images for dcp)

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Host Kelly Clarkson attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)

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Boy Band BTS attends the 2018 Billboard Music Awards 2018 at the MGM Grand Resort International on May 20, 2018 in Las Vegas, Nevada. LISA O'CONNOR/AFP/Getty Images

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Recording artist Mason Ramsey attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)

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Recording artist Ne-Yo attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)

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Actor Jenna Dewan attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)

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Recording artist Normani attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)

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Recording artist Julia Michaels attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)

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Recording artist Jesse McCartney (L) and Katie Peterson attend the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)

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Recording artist Shawn Mendes attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Matt Winkelmeyer/Getty Images for dcp)