PHOTOS: Backstage, Behind The Scenes of the 2019 Billboard Music Awards

BILLBOARD MUSIC AWARDS — Show Backstage — 2019 BBMA at the MGM Grand, Las Vegas, Nevada — Pictured: Brendon Urie and Halsey — (Photo by: Todd Williamson/NBC)

BILLBOARD MUSIC AWARDS — Show Backstage — 2019 BBMA at the MGM Grand, Las Vegas, Nevada — Pictured: Juice WRLD — (Photo by: Christopher Polk/NBC)

BILLBOARD MUSIC AWARDS — Show Backstage — 2019 BBMA at the MGM Grand, Las Vegas, Nevada — Pictured: (l-r) BTS and Terry Crews — (Photo by: Todd Williamson/NBC)

BILLBOARD MUSIC AWARDS — Show Backstage — 2019 BBMA at the MGM Grand, Las Vegas, Nevada — Pictured: BTS — (Photo by: Christopher Polk/NBC)

BILLBOARD MUSIC AWARDS — Show Backstage — 2019 BBMA at the MGM Grand, Las Vegas, Nevada — Pictured: (l-r) Brendon Lurie, Taylor Swift — (Photo by: Christopher Polk/NBC)

BILLBOARD MUSIC AWARDS — Show Backstage — 2019 BBMA at the MGM Grand, Las Vegas, Nevada — Pictured: (l-r) Kelly Clarkson, Host; Priyanka Chopra, Sophie Turner, Danielle Jonas — (Photo by: Christopher Polk/NBC)

BILLBOARD MUSIC AWARDS — Show Backstage — 2019 BBMA at the MGM Grand, Las Vegas, Nevada — Pictured: (l-r) Mariah Carey and Jennifer Hudson — (Photo by: Todd Williamson/NBC)

BILLBOARD MUSIC AWARDS — Show Backstage — 2019 BBMA at the MGM Grand, Las Vegas, Nevada — Pictured: Jennifer Hudson — (Photo by: Todd Williamson/NBC)

BILLBOARD MUSIC AWARDS — Red Carpet Roaming — 2019 BBMA at the MGM Grand, Las Vegas, Nevada — Pictured: (l-r) George Cheeks, Co-Chairman NBC Entertainment; Paul Telegdy, Co-Chairman NBC Entertainment — (Photo by: Todd Williamson/NBC)

BILLBOARD MUSIC AWARDS — Show Backstage — 2019 BBMA at the MGM Grand, Las Vegas, Nevada — Pictured: (l-r) Halsey, Taylor Swift, Jennifer Hudson — (Photo by: Christopher Polk/NBC)

BILLBOARD MUSIC AWARDS — Show Backstage — 2019 BBMA at the MGM Grand, Las Vegas, Nevada — Pictured: (l-r) Brendon Lurie, Taylor Swift — (Photo by: Christopher Polk/NBC)

BILLBOARD MUSIC AWARDS — Show Backstage — 2019 BBMA at the MGM Grand, Las Vegas, Nevada — Pictured: BTS and Halsey — (Photo by: Todd Williamson/NBC)

BILLBOARD MUSIC AWARDS — Show Backstage — 2019 BBMA at the MGM Grand, Las Vegas, Nevada — Pictured: (l-r) Sophie Turner and Joe Jonas — (Photo by: Todd Williamson/NBC)

BILLBOARD MUSIC AWARDS — Show Backstage — 2019 BBMA at the MGM Grand, Las Vegas, Nevada — Pictured: (l-r) Offset, Cardi B and Khalid — (Photo by: Todd Williamson/NBC)

BILLBOARD MUSIC AWARDS — Show Backstage — 2019 BBMA at the MGM Grand, Las Vegas, Nevada — Pictured: (l-r) Nick Jonas, Priyanka Chopra — (Photo by: Christopher Polk/NBC)

BILLBOARD MUSIC AWARDS — Show Backstage — 2019 BBMA at the MGM Grand, Las Vegas, Nevada — Pictured: Juice WRLD — (Photo by: Christopher Polk/NBC)

BILLBOARD MUSIC AWARDS — Show Backstage — 2019 BBMA at the MGM Grand, Las Vegas, Nevada — Pictured: (l-r) BTS, Khalid — (Photo by: Christopher Polk/NBC)

BILLBOARD MUSIC AWARDS — Show Backstage — 2019 BBMA at the MGM Grand, Las Vegas, Nevada — Pictured: Juice WRLD — (Photo by: Christopher Polk/NBC)

BILLBOARD MUSIC AWARDS — Show Backstage — 2019 BBMA at the MGM Grand, Las Vegas, Nevada — Pictured: (l-r) Halsey, Taylor Swift and Jennifer Hudson — (Photo by: Todd Williamson/NBC)

BILLBOARD MUSIC AWARDS — Show Backstage — 2019 BBMA at the MGM Grand, Las Vegas, Nevada — Pictured: (l-r) BTS and Khalid — (Photo by: Todd Williamson/NBC)

BILLBOARD MUSIC AWARDS — Show Backstage — 2019 BBMA at the MGM Grand, Las Vegas, Nevada — Pictured: BTS — (Photo by: Christopher Polk/NBC)

BILLBOARD MUSIC AWARDS — Show Backstage — 2019 BBMA at the MGM Grand, Las Vegas, Nevada — Pictured: (l-r) Terry Crews and Rob Gronkowski — (Photo by: Todd Williamson/NBC)