Demi Lovato Performs at Y100's Jingle Ball 2013!

Demi Lovato keeps it chic while performing onstage during Y100′s Jingle Ball 2013 held at BB&T Center on Friday (December 20) in Miami, Florida.

“So excited for the show tonight…. #jingleball2013 #NEONLIGHTS,” the 21-year-old entertainer tweeted earlier in the day.

PHOTOS: Check out the latest pics of Demi Lovato

The day before, Demi was all dolled up while attending the season three finale of The X Factor, which was won by Alex & Sierra.

In case you missed it, Demi will not be returning to X Factor.

20+ pictures inside of Demi Lovato performing at the Y100 Jingle Ball 2013…