Solo singing career
In 2008, she released two singles with fellow Girls' Generation members Jessicaand Seohyun — the first called "Oppa Nappa" ("오빠 나빠", "Bad Boy")[21] and the second titled "Mabinogi (It's Fantastic!)", a theme song for a video game.[22]
Tiffany has also participated in the OST of SBS drama Jamyeonggo with the song By Myself 나 혼자서),[23][24] and was featured in a duet with K.Will in A Girl, Meets Love (소녀, 사랑을 만나다).[25]
She was also featured in Oh! My Love to You (너만을 느끼며) by The Blue, alongside bandmate Sooyoung.[26]
She also sang the theme song for Caribbean Bay with her fellow members Taeyeon, Seohyun, Sunny, Jessica, Yuri and k-pop boy group 2PM.
In 2012, Tiffany participated in the OST of Love Rain which bandmate Yoona is a lead actress in. She and Kyuhyun of Super Junior sang the OST for To The Beautiful You.
In 2013, Tiffany participated in the OST of All About My Romance. The song is called "One Step Closer".[27]
