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

Continuing her sexy streak started with her 2015 hit "Cool For the Summer," Demi's bubble bath scene in the "Sorry No Sorry" music video would be perfect to replicate.

• What to wear: Get a swimsuit or bodysuit that will fit you like a glove, and carry around a bottle of bubbles so you can blow them at people when they ask about your costume. Put your hair up in a ponytail, and highlight your cheekbones so they can be seen from a mile away.
• How to act: Own every ounce of sexy you have, and walk around like the queen that you are.