We think about nail art trends often at POPSUGAR — from "ice cube" nails [1] that take inspiration from literal ice cubes to the "Pucci" manicure [2] that marries bold colours and abstract patterns to match the designer's geometric prints — but even despite how out-there they are becoming these days, there's one thing we've rarely considered: painting the backside of your nails. Until now.

"Flipside" manicures, as they are often called, are nails that feature your standard design on the front and a hidden colour (often red, although not always) that peeks out from the back or behind the nails — kind of like how a Christian Louboutin shoe features the classic red bottom. Flipside nail art is by no means a new trend, but it has been picking up in popularity of late. In fact, they most recently caught our attention when celebrity manicurist Tom Bachik [3] shared photos of the fun black-and-white nail art he gave Selena Gomez [4] during her appearance at Global Citizen's VAX Live: The Concert to Reunite the World event on 8 May.

The singer's nail design was an inverted french manicure with a hidden bright red colour underneath. "French Twist with a Flipside," Bachik captioned the photo.

There's obviously more where that came from, though. Check out some of our favourite takes on flipside nail art ahead.