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

For years, Demi has taken on martial arts as part of her workout routine, and when she got her blue belt, we're sure she leaped with joy.

• What to wear: Get yourself a martial arts uniform and a blue belt. You won't even have to wear makeup.
• How to act: Be on the defense like you are ready to kick some butt.