JYJ’s Jaejoong stars in Gummy’s latest MV titled “I I YO.”
The two have been friends for a decade and Jaejoong gladly agreed to star in Gummy’s music video. The idol star trains hard in the gym to running miles in the great outdoors, in order to prepare for his feisty battle inside the boxing ring.
SEE ALSO: Gummy and JYJ’s Jaejoong reflect on their decade-long friendship
Watch the dramatic MV above!
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