1 of 10
Cher performs "Believe".
Credit: Reuters
2 of 10
Singer Camila Cabello performs.
Credit: Reuters
3 of 10
Camila Cabello performs.
Credit: Reuters
4 of 10
Halsey performs "Now or Never."
Credit: Reuters
5 of 10
Hosts Vanessa Hudgens and Ludacris.
Credit: Reuters
6 of 10
Halsey performs "Now or Never."
Credit: Reuters
7 of 10
Celine Dion performs "My Heart Will Go On."
Credit: Reuters
8 of 10
Musicians Alex Pall (L) of The Chainsmokers, Halsey (C), and Andrew Taggart of The Chainsmokers accept the award for Top Hot 100 Song "Closer."
Credit: Reuters
9 of 10
Julia Michaels performs "Issues".
Credit: Reuters
10 of 10
Singer Jason Derulo performs.
Credit: Reuters
