Demi can werk!!
[Image via WENN.]
The annual event brings celebs, models, designers, and magazine editors together to help raise money for AIDS research.
With Swifty and Biebs as the face of the global event, we can only imagine how much they will inspire fans to come out and celebrate!
In the meantime, check out their adorbsies promo for the event (above) and don't forget Fashion's Night Out begins September 6!