The "Shake It Off" singer knows all that glitters is gold as she works a Romona Keveza skirt.
Gwen's hair is "ON FIRE"!!!
The Dancing With the Stars pro scores big backstage with Girl Scout cookies!
The Real Housewives of Beverly Hills star rocks animal print at the KIIS-FM Jingle Ball.
Before performing "All About That Bass" in front of a sold-out crowd, the blond singer picks up some goods at the gifting suite.
The actress, who plays fiesty Rosita on The Walking Dead, looks sexy in black.
The "Fancy" rapper shows off some pretty fancy footwear.
We are all about that top, 'bout that top...
Always good to see the Dancing With the Stars hottie!
The "Shower" singer picks out some accessories from DressFierce before showtime.
The Chrisley Knows Best star brought his 16-year-old daughter to the KIIS-FM Jingle Ball.
The singer peformed her latest hit single, "Blank Space," as well as her 2012 hit "We Are Never Getting Back Together."
Before surprising fans with a duet performance of "Avalanche" with Nick Jonas, the singer supports her new skincare line, Devonne by Demi.
The British singer shows her L.A. spirit!
The pop star gets playful on stage.
The lovebirds sing their duet, "Best Mistake."
The two performed their duet, "Avalanche."
The two The Voice coaches performed together onstage.
The two performed their hit single, "Black Widow."
NEXT GALLERY: Stars Performing Live On-Stage