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3RACHA, consisting of rap line members Bang Chan, Changbin, and Han, are well known for both their rapping abilities and songwriting/production skills.

On September 9, JYP Entertainment released a special video of the boys performing the original song "Zone." 

"Hello, this is Stray Kids' Bang Chan, Changbin, and Han. It's been a long time since we were together as 3RACHA! The song we prepared this time around is 'Zone,' which was first revealed at the last UNVEIL showcase," the members wrote as an introduction to the video, adding that while 'Zone' is a song with a dark atmosphere, its completely different hook makes it an exciting song to enjoy.

"For this SKZ-Player, we prepared a live recording of the song. We hope that our fans enjoy and feel 3RACHA's confidence and music," they commented before concluding that they will always return with music that will satisfy fans' expectations.

Watch the full performance of "Iron" above!