[Videos, Gallery Updates] 102.7 KIIS FM's Jingle Ball in LA

PHOTOS:

Red Carpet

Backstage

Performing 

Backstage Interview

Meet and Greet

VIDEOS:

Performing "Adore You":

Performing "#GETITRIGHT": 

Performing "We Can't Stop":

Performing "Party in the USA":

Performing "Summertime Sadness":

Performing "Wrecking Ball":

On the red carpet:

Interview: