Maryland basketball players Jared Nickens, Jaylen Brantley and Damonte Dodd have been dancing to "My Boo" by Ghost Town DJs for weeks and now they're trying to make it a movement.
It's not just in the locker room -- the trio has performed in an office, from under a blanket and in the middle of a busy street.
The movement doesn't stop in Maryland -- they've spread the dance to Villanova, Virginia Tech and Marquette.
UConn's women's basketball team also got in on the act, championship trophies and all. This is going to be a tough one to beat.
And lo and behold, the Heat's Justise Winslow, in celebration of winning Game 1 against the Hornets, posted an Instagram video of him and his sister Bianca doing the "My Boo" dance:
Next up: Papi!
It has now spread to college football where the entire Rutgers team go in on the act, while Michigan also had some fun.
The Ring of Honor... Gone wrong! pic.twitter.com/PI9Vi0c7HS— Chris Ash (@CoachChrisAsh) April 22, 2016
And onto the NFL! Here go the Jaguars:
The Orlando Magic got Stuff the Magic Dragon -- AND AN INFLATABLE T-REX -- to join in:
Ben Schwartz from Parks and Rec definitely nailed it.
Uncle Drew's got it.
Eventually, the Running Man Challenge reached the Gronkowski family, and, well, this happened:
Shout out to the Gronk brother who almost faceplanted on the box trying to get the timing of this skit right.