She gets emotional after singing "The Heart Wants What It Wants."
"Problem" live at the AMAs.
Collaborating live at the 2014 AMAs.
Her hit from The Hunger Games: Mockingjay, Part 1.
Performing their dreamy new single "Night Changes."
The trio of ladies performs the hit at the 2014 AMAs.
Their third AMA of the night in 2014.
The first-ever recipient of the award.
Their hit "Rude" live at the 2014 AMAs.
Nicki shows her emotional side in this understated performance.
Performing "Fancy" and "Beg For It" live.
Live at the 2014 AMAs.
See their 2014 AMAs speech now.
Watch his 2014 AMAs acceptance speech.
The live television debut of their new single.
"Break Free" and "Love Me Harder" live at the AMAs.
Performing her hit song "Therapy" live.
Performing three big hits, including "Fireball."