This episode will feature former SISTAR member Soyu and she will be showing off her massaging skills.

Wanting to receive a relaxing massage from the idol star, the 'Running Man' members sprung up their arms in the air hoping to get selected. Lee Kwang Soo pleaded while lying flat on the ground. However, as soon as Soyu touched him, Lee Kwang Soo's face contorted as he felt the unsettling pain.

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Other members thought Lee Kwang Soo was just joking around, however, they also screamed in agony after receiving Soyu's massage. 

You can watch the full episode of 'Running Man' with Soyu this Sunday, September 3.