Of all the style moves to be having a moment during the first few chilly weeks of fall, we weren’t expecting nail polish to be one of them. But hey, it’s better that than infinity scarves.

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In America, a whole new crew of famous guys are painting their nails. Well, nail. Zac Efron (above) and sibling actors Liam and Chris Hemsworth (below) recently shared photos of themselves with one nail painted to support the Polished Man project; an initiative that calls on men to raise awareness about the one in five children around the world who experience physical and/or sexual violence before the age of 18. Donations to Polished Man support children’s trauma recovery and prevention programs all over the world.

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And last week across the Atlantic, Harry Styles wore a slim black suit (by Dior Homme), expertly slicked-back hair, and a full black manicure at a party in London for his Another Man cover. The nail polish was there, presumably, to edge up what was an otherwise very classic look—not necessarily to coincide with Polished Man campaign (or if so, someone didn't read the directions). We’ll have to wait and see if this will be Styles’s new “thing”. If his commitment to long hair proved anything, it’s that once he finds a look he likes, he sticks to it.

So, yeah, nail polish. Consider it trending.

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