Lee Kwang Soo's mother has warmed hearts after it was revealed she sent a surprise gift to her son on his last day of SBS's 'Running Man'. 

On May 24 KST, a party balloon vendor revealed that Lee Kwang Soo's mother sent an adorable gift to her son on his last day of 'Running Man'. The vendor wrote on his Instagram, "Well done, Son! I can feel his mom's thoughts and feelings in this simple quote. A surprise gift for her son! Isn't this awesome?" and he posted a picture of the finished balloon decor with his mom's message "Well done, Son!". 

Actor Lee Kwang Soo has been a regular cast member of SBS's 'Running Man' since the program's pilot episode, which aired back in 2010. As previously confirmed with his label King Kong by Starship, Lee Kwang Soo will be filming his last episode for 'Running Man' today, May 24th. 

It was reported 'Running Man' has no plans to recruit any new members to fill in for Lee Kwang Soo's place on April 27th.