When It Comes to Sexy Halloween Costumes, Jennifer Lopez Is an Endless Source of Inspiration

In the hit NBC show Shades of Blue, Jennifer plays the badass corrupt cop Harlee Santos. She's a totally dressed-down version of the J Lo we normally see flaunting her dancing skills on stage.

• What to wear: To get J Lo's style as Harlee, you can find items already in your closet. Find a beige jacket, a white tee, jeans, and white Converse shoes. Curl your hair and you are good to go.
• How to act: Harlee is a woman in charge who isn't afraid to pull a gun on anyone, so you need to act the same way. Show people you are not one to be messed with while still looking like the perfect girl next door.