Seohyun is a bassist.
 Although they did not achieve much commercial success; her duet titled "JjaLaJaJJa" with veteran singer Joo Hyun-mi earned a "Trot Music of the Year" nomination at the 2009 Mnet Asian Music Awards
In 2021, Seohyun was selected as the Asia-Pacific ambassador for mid-range beauty brand Clinique

