16 Demi Lovato Costume Ideas That Will Make You Cool For Halloween

We can't say we were totally surprised when Demi came out to perform at the 2015 iHeartRadio Music Festival in a completely sheer outfit. But we're totally loving her return to that rock-and-roll look that she has always been known for.

• What to wear: Layer a simple black bralette, a mesh bodysuit, and fishnet tights under a pair of high-waist denim shorts. Throw on a killer white moto jacket to complete the look.
• How to act: Like you're pumped and ready to rock and roll. Be spontaneous and hyper — essentially you should be the life of the party.