Photo: Getty

You’ve probably seen plenty of nail art inspiration on Instagram, but never like this. In an unexpected new manicure trend, men are painting their nails (or at least just one) for a good cause—and the movement is spreading quickly.

Actors Zac Efron, Liam Hemsworth and Chris Hemsworth are just a few participating in the Polished Man Challenge, a campaign that’s raising awareness on sexual violence against children. One in five children falls victim to sexual violence before he or she turns 18; hence, the initiative requires painting one out of five fingernails on your hand.

Like most social media campaigns, the #PolishedMan movement involves nominating friends to follow suit after posting your own photo. That’s where the growing list of celebs falls in. After Thor star Chris Hemsworth posted a picture showing off a green nail, he nominated his Aussie brother Liam Hemsworth and Zac Efron to continue the chain. He also called out Tom Hiddleston and his Avengers costars Robert Downey Jr., Jeremy Renner and Mark Ruffalo to do the same.

While men wearing makeup is no new breakthrough (CoverGirl finally introduced its first male spokesperson yesterday), it’s still a pleasant surprise to see some of your celeb crushes in a layer or two of nail polish to support a cause. Take a look below, and be on the lookout for their nominees to follow suit in the near future.

Zac Efron

Liam Hemsworth

Chris Hemsworth

Convince your male friends to paint a finger nail and donate here.

From: Harper’s BAZAAR US