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Only a couple weeks ago, TRCNG made their debut with by releasing "Spectrum". At the time, they gained much attention with their strong and fast-moving choreography. Now, they have dropped an entire dance practice video dedicated to this song to show just how much practice was involved. With each movement, everyone is in sync that even the sound of footsteps is in uniform. Check out the video above.

How did you like their debut song, "Spectrum"?