Every once in a while celebs step away from Hollywood's glamour and seem to follow the suggestion: "Let's get wild!"
For Rihanna this is a weekly occurrence and usually results in another new hairstyle. Yet, if we were going to pick her most shocking beauty look this year, it wouldn't include a cut or color change. It would, however, be the moment she decided to wear a blue statement lip to her River Island launch in London.
Runner up in the craziest hair color change category would most likely go to Kesha, who rocked rainbow hair earlier this month.
Tress transformations aside, there were plenty of eyebrow-raising looks including art pop nail art and bleached eyebrows. So in anticipation of seeing stars get even more wacky for Halloween we decided to take a look back at some of this year's wildest beauty moments. Click on to see what made our list.