Seems there is a new trend sweeping Seattle, Washington and Pensacola, Florida, ‘pit-ins’. Women getting together for dyeing sessions of their armpit hair.

Women opt for bright colors like hot pink, orange, green, neon yellow, purple and blue. Singer Miley Cyrus showed off her pink underarms in a photo she posted on Instagram this past May. Some women do it to freak other people out but some use it as a fashion statement because ‘it looks cool’.

Not everyone thinks it looks ‘cool’. Posts on YouTube have received a lot of views and the comments have been both positive and negative.

Experts say if you’re going to dye your underarms, get a professional to do it because armpits can be sensitive. The cost of a ‘pit dye’ is around $65.

nytimes.com