A brand new day, a brand new social media challenge, but we have to say, this one is pretty cool and it's now taking the Internet by storm.
The trend first started this summer when Dontez Hines, a defensive back at Anderson University in IN, demonstrated the stunt in a viral video on Twitter.
Others hilariously fail, tripping over their own feet or even falling to the ground. For every successful invisible box challenge attempt, there are about 10 not-so-successful attempts. For example, a video from 2014 shows a group of dancers pulling it off.
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"All his hip stabilizers on the right side are firing on overtime to hold that hip in position", Men's Health fitness editor Ebenezer Samuel said of Hines' video.
'"Very explosive hip flexor, abdominal and glute strength is what is driving the leg up and over the box".
'You'll notice [the] body rotates toward the leg on the step as well; there's a ton of oblique and ab stability maintaining that position'.
"The technique.is to bring the other leg higher than the other as if you are actually stepping over a box".
Essentially the person must keep their foot fixed in mid air, on the "box", and hop with the other foot - while trying to look like they aren't hopping at all.