[1] Currently, Song is running own company Media Lab Seesaw as CEO[2] with her friend, Kim-Sook as director.

[3][4] In 2016, Song and fellow comedian Kim Sook published a book together, based on their podcast, Keeping Secrets (비밀보장).

[4][10] Song's production company has produced multiple web-based shows and podcasts including Keeping Secrets, The King of Shopping and Kim Saeng-min's Receipt,[11] as well as producing the group, Celeb Five (Korean: 셀럽파이브), which Song is also a part of.

[12][13] Song, among other South Korean celebrities such as Kim Won-hee and Kim Yong-man, is a part of a volunteer group called God is Love Ministry (GIL Ministry), who provide medical sponsorship for Haitian children with congenital heart disease, allowing the children to go to South Korea for medical treatment for their cardiovascular condition.

[14][15][16][17] One of Song's hobbies includes woodworking, having learnt the skill with Kim Sook when she had little work and broadcasting activity.