Gallery: Onstage at the 2017 Billboard Music Awards

From Cher’s barely-there costumes to Miley Cyrus’s makeunder, here are the moments that dominated the 2017 Billboard Music Awards’ stage at the T-Mobile Arena in Las Vegas.

Cher

Cher performs at the Billboard Music Awards at the T-Mobile Arena on Sunday, May 21, 2017, in Las Vegas. (Photo by Chris Pizzello/Invision/AP)

Drake

Drake accepts the award for top Billboard 200 album for “Views” at the Billboard Music Awards at the T-Mobile Arena on Sunday, May 21, 2017, in Las Vegas. (Photo by Chris Pizzello/Invision/AP)

Celine Dion

Celine Dion performs onstage during the 2017 Billboard Music Awards at T-Mobile Arena on May 21, 2017 in Las Vegas, Nevada. (Photo by Ethan Miller/Getty Images)

Imagine Dragons

Singer Dan Reynolds of Imagine Dragons performs onstage during the 2017 Billboard Music Awards at T-Mobile Arena on May 21, 2017 in Las Vegas, Nevada. (Photo by John Shearer/BBMA2017/Getty Images for dcp)

Miley Cyrus

Miley Cyrus performs onstage during the 2017 Billboard Music Awards at T-Mobile Arena on May 21, 2017 in Las Vegas, Nevada. (Photo by Kevin Mazur/BBMA2017/Getty Images for dcp)

Blake Shelton and Gwen Stefani

Blake Shelton and Gwen Stefani attend the 2017 Billboard Music Awards at T-Mobile Arena on May 21, 2017 in Las Vegas, Nevada. (Photo by John Shearer/BBMA2017/Getty Images for dcp)

Camila Cabello

Camila Cabello performs onstage during the 2017 Billboard Music Awards at T-Mobile Arena on May 21, 2017 in Las Vegas, Nevada. (Photo by John Shearer/BBMA2017/Getty Images for dcp)

Julia Michaels

Julia Michaels performs “Issues” at the Billboard Music Awards at the T-Mobile Arena on Sunday, May 21, 2017, in Las Vegas. (Photo by Chris Pizzello/Invision/AP)

Nicki Minaj

Nicki Minaj performs onstage during the 2017 Billboard Music Awards at T-Mobile Arena on May 21, 2017 in Las Vegas, Nevada. (Photo by Ethan Miller/Getty Images)

Sam Hunt

Sam Hunt performs onstage during the 2017 Billboard Music Awards at T-Mobile Arena on May 21, 2017 in Las Vegas, Nevada. (Photo by John Shearer/BBMA2017/Getty Images for dcp)

The Chainsmokers

Andrew Taggart, left, and Alex Pall, right of The Chainsmokers, perform “Young” at the Billboard Music Awards at the T-Mobile Arena on Sunday, May 21, 2017, in Las Vegas. (Photo by Chris Pizzello/Invision/AP)

Lorde

Lorde performs onstage during the 2017 Billboard Music Awards at T-Mobile Arena on May 21, 2017 in Las Vegas, Nevada. (Photo by John Shearer/BBMA2017/Getty Images for dcp)

Tribute to The Notorious B.I.G.

Sean “Diddy” Combs presents a tribute to Biggie Smalls at the Billboard Music Awards at the T-Mobile Arena on Sunday, May 21, 2017, in Las Vegas. (Photo by Chris Pizzello/Invision/AP)

Miley Cyrus and Billy Ray Cyrus

Miley Cyrus and Billy Ray Cyrus attend the 2017 Billboard Music Awards at T-Mobile Arena on May 21, 2017 in Las Vegas, Nevada. (Photo by Chris Polk/BBMA2017/Getty Images for DCP)

Halsey

Halsey performs onstage during the 2017 Billboard Music Awards at T-Mobile Arena on May 21, 2017 in Las Vegas, Nevada. (Photo by John Shearer/BBMA2017/Getty Images for dcp)

Florida Georgia Line with John Legend

Brian Kelley, from left, and Tyler Hubbard, of Florida Georgia Line, and John Legend perform at the Billboard Music Awards at the T-Mobile Arena on Sunday, May 21, 2017, in Las Vegas. (Photo by Chris Pizzello/Invision/AP)

Cher

Cher performs onstage during the 2017 Billboard Music Awards at T-Mobile Arena on May 21, 2017 in Las Vegas, Nevada. (Photo by John Shearer/BBMA2017/Getty Images for dcp)

Celine Dion

Celine Dion performs onstage during the 2017 Billboard Music Awards at T-Mobile Arena on May 21, 2017 in Las Vegas, Nevada. (Photo by Ethan Miller/Getty Images)

Blake Shelton

Blake Shelton accepts Top Country Artist onstage during the 2017 Billboard Music Awards at T-Mobile Arena on May 21, 2017 in Las Vegas, Nevada. (Photo by Ethan Miller/Getty Images)

David Guetta and Nicki Minaj

DJ David Guetta and rapper Nicki Minaj perform onstage during the 2017 Billboard Music Awards at T-Mobile Arena on May 21, 2017 in Las Vegas, Nevada. (Photo by Ethan Miller/Getty Images)

Gwen Stefani and Cher

Honoree Cher accepts the Billboard Icon Award from singer Gwen Stefani onstage during the 2017 Billboard Music Awards at T-Mobile Arena on May 21, 2017 in Las Vegas, Nevada. (Photo by Ethan Miller/Getty Images)

Florida Georgia Line

Brian Kelley (L) and Tyler Hubbard of Florida Georgia Line accept Top Country Song for ‘H.O.L.Y.’ onstage during the 2017 Billboard Music Awards at T-Mobile Arena on May 21, 2017 in Las Vegas, Nevada. (Photo by Ethan Miller/Getty Images)

Lil Wayne, Nicki Minaj, and Drake

(L-R) Lil Wayne, Nicki Minaj, and Drake attend the 2017 Billboard Music Awards at T-Mobile Arena on May 21, 2017 in Las Vegas, Nevada. (Photo by Kevin Mazur/BBMA2017/Getty Images for dcp)

Tribute to The Notorious B.I.G.

Christopher Jordan Wallace (L) and Sean ‘Diddy’ Combs speak onstage during the 2017 Billboard Music Awards at T-Mobile Arena on May 21, 2017 in Las Vegas, Nevada. (Photo by Ethan Miller/Getty Images)

Ludacris and Vanessa Hudgens

Hosts Ludacris, left, and Vanessa Hudgens speak at the Billboard Music Awards at the T-Mobile Arena on Sunday, May 21, 2017, in Las Vegas. (Photo by Chris Pizzello/Invision/AP)

The Chainsmokers

(L-R) Alex Pall of The Chainsmokers, Halsey, and Andrew Taggart of The Chainsmokers accept Top Collaboration for ‘Closer’ onstage during the 2017 Billboard Music Awards at T-Mobile Arena on May 21, 2017 in Las Vegas, Nevada. (Photo by Ethan Miller/Getty Images)

BTS

Music group BTS accepts Top Social Artist onstage during the 2017 Billboard Music Awards at T-Mobile Arena on May 21, 2017 in Las Vegas, Nevada. (Photo by Ethan Miller/Getty Images)

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