Halloween may still be a few days away, but that's not stopping Selena Gomez and Benny Blanco ... slash-actress ditched her dark brunette hair for a blonde wig with a black headband and wore ...

The "Only Murders in the Building" star Selena Gomez has sported some killer beauty looks, but sometimes she can go overboard with the eye shadow and eyeliner.

Then steal that Selena Gomez style with makeup and hair tutorials as well as shopping info on Selena's best celebrity street-style outfits and fashion must-haves.