Celine Dion's Emotional Paris Tribute and Other Huge Moments From the AMAs

It was a big night at the American Music Awards as host Jennifer Lopez wowed in 10 wardrobe changes.

Lopez wasn't the only one turning heads with her clothes. Gwen Stefani hit the red carpet in an interesting outfit.

Lopez opened the show with an elaborate musical number which she is getting rave reviews but when the camera panned to Nicki Minaj, she didn't look impressed.

The highlights of the show included Meghan Trainor and Charlie Puth having a make out session during his performance and Celine Dion brought the house down with an emotional tribute to the victims of the Paris attacks.

Read: Eagles of Death Metal Speak Out for First Time Since Attacks: 'Love Overshadows Evil'

The French Canadian sang Edith Piaf’s “Hymne a L'Amour” and many in the audience couldn't hold back their tears.

Jared Leto, who is the singer for rock band 30 Seconds to Mars, also paid tribute to the victims of Paris and recalled the time his band played Le Bataclan. 

"Tonight we honour the victims of the unimaginable violence that took place in Paris and around the world," he said before Dion performed. "France matters. Russia matters. Mali matters. Syria matters. The whole world matters. Peace is possible."

Read: France Takes to the Soccer Pitch in 'Act of Defiance' Following Paris Massacre

The nights big winners included Taylor Swift who took home three awards including "Song of the Year." Nicki Minaj, The Weeknd and One Direction all took home two awards. 

Watch Below: Presidential Candidate Martin O'Malley Sings Taylor Swift's 'Bad Blood.'