While in JYP Entertainment, she sang OSTs of Korean dramas in 2007 and 2008 such as "Learning To Fly" for Air City.

Song, along with Han Sun-hwa, Jung Ha-na and Jun Hyo-seong, debuted as the group, Secret.

[11] The same year, Song made her acting debut in the web drama Drawing, Spring, as a part-time worker for a PR team, who loves all living things but has traumatic experience with horses.

In April 2015, Song featured in fantasy youth comedy The Superman Age, an 8-episode series which aired on cable channel tvN.

[16][17][18] In April 2017, Song starred in OCN's romantic comedy drama My Secret Romance alongside Sung Hoon.

[22] On December 21, 2023, Song announced through her Instagram account that she was in a relationship with YouTuber Park We of the channel Weracle.