The 'Love Me Like You Do' singer opted for a camel-hued suedette dress that featured silver punched out holes along the bottom hem and around the neck.
Pretty cooler than most red carpet looks, right?
With a thigh-skimming skirt, Ellie showed off her amazing bronzed legs and added a little extra length with black patent ankle boots – we want a pair of those!
Keeping with her edgy look, the singer added a few silver rings to her fingers and kept her nails bare and natural.
She finished things off with a classic biker jacket that featured an array of silver zips. Meanwhile her blonde locks were left loose and shiny, while her make-up was naturally done with a nude pout and fluttery black lashes.
Ellie was performing at the Jingle Ball, an annual concert that's organised by Ryan Seacrest and raises money to provide entertainment and education for today's youth. Other artists performing at the show included One Direction, Selena Gomez and The Weeknd.
No doubt the show would have taken Ellie's mind off the current rumoured relationship woes she's having with Dougie Poynter. Reports earlier this week claimed the pair were "taking a break" due to busy work schedules and work commitments.
A source had told The Mirror: "They are taking a break. Their work commitments have meant they have been spending more and more time away from each other and it has made it difficult to maintain their relationship. They've decided to have a temporary break to see if they can work things out."