TO1 is back with a special treat for fans!

On May 30 KST, the 'World Klass' boy group unveiled a 'relay dance' video through Mnet's YouTube channel for digital studio M2. In the video, the members dance a modified single-file version of the original choreography for their latest single "Son of a Beast," dressed in cool black-and-yellow coordinated stage looks. The clip ends with fun outtakes from making the video, as well as the members sweetly greeting their fans.

Meanwhile, "Son of Beast" is the title track off of TO1's 1st mini album 'RE:BORN,' released on May 20.

Check out the full video above!