Taylor Swift & Jessie J
Dance off! Taylor Swift gives Jessie J a run for her money during Jessie's "Bang Bang" performance.
Jennifer Lopez & Iggy Azalea
J.Lo and Iggy closed the show with their sizzling "Booty" performance.
Taylor Swift
T.Swift was on fire during her world premiere performance of "Blank Space."
Nicki Minaj, Jessie J & Ariana Grande
The golden goddesses are all smiles after "Bang Bang."
Selena Gomez
Tear-jerker! Bieber's ex gave an emotional performance of her new song "The Heart Wants What It Wants."
Fergie
The singer performs solo at the AMAs for the first time in years!
Lorde, Selena Gomez & Taylor Swift
BFF alert! The singers enjoy the show together.
Christina Milian & Lil Wayne
Yikes! Milian dances on the rapper.
Jennifer Lopez
We see that booty, J.Lo!
Imagine Dragons
The rockers take home the award for Favorite Alternative Rock Artist.
Ariana Grande
Grande wows the crowd while belting out "Problem," "Break Free" and "Love Me Harder."
Taylor Swift
The "Shake It Off" singer accepts the Dick Clark Award For Excellence from Diana Ross.
One Direction
The boy-banders took home three AMAs!
Luke Bryan
The country crooner takes home the Favorite Country Male Artist trophy.
Jennifer Lopez
Lopez shows fans lots of leg!
Iggy Azalea
Iggy beat out Eminem for two awards!
Jennifer Lopez
Lopez and Iggy drive the crowd wild with their bumping and grinding.
Taylor Swift
The blond beauty plants a kiss on one of her hunky dancers.