Korean: The Blue Night of Jeju Island [Digital Single] I Still [Pre Release Single], The First Album Part 1: Re:Born [Full Album Part 1], My Blossom [Digital Single], The First Album Part 2: Re:Fresh [Full Album Part 2], On The Road (X-Mas Project Vol.1) [Digital Single], Gotta Go [Digital Single], Good Night MY Love [Digital Single], Cyworld BGM 2021 (Soyou) [Digital Single], Day & Night [Mini Album]
CFs: Pepsi x Starship [Beginning] (Soyou x Rain) [CF Single], Pepsi x Starship [ZERO:ATTITUDE] [IZ*ONE (Eunbi, Sakura, Minju, Yuri, Wonyoung) X SOYOU] (ft. ph-1) [CF Single]
Collabs: Stupid In Love (with Mad Clown), Some (with Junggigo), The Space Between (with Urban Zakapa’s Kwon Soonil & Park Yongin), Lean on Me (with 10cm’s Kwon Jungyeol), Runnin’ (with Henry [SMSTATION]), Rain (with EXO’s Baekhyun), Perfect (with Letter Flow), Monitor Girl (with Louie), I Still (with Sung Sikyung), Starship Planet 2018 (with Starship Artists), Rain Drop (with OVAN), Bangkok (with Francis), XMMXXI (with Eddie Dee and Grupo Libra), Hombre (with Eddie Dee and Grupo Libra), X by X [ 꿈 ] (with MC Mong), Fine (with Huh Gak)
Features: “Right?” Pop – Primary, “Forever Yours” – SHINee’s Key
OSTs: “It’s Okay” Gloria OST (with J2 Woo) (2010), “Should I Confess” Playful Kiss OST Part3 (2010), “Once More” Empress Ki OST Part4 (2014), “Diamond” The Snow Queen 2 OST (2014), “You Don’t Know Me” She Was Pretty OST Part.4 (with BrotherSu) (2015), “No Sleep” Moonlight Drawn by Clouds OST Part.4 (with Yu Seungwoo) (2016), “I Miss You” Goblin OST Part.7 (2017), “Good To Be With You” When the Camellia Blooms OST Part5 (2019), “Before Sunrise” Traveler OST Part.3 (2020), “Goodbye” Oh My Baby OST Part.2 (2020), “The Only One” 18 Again OST Part1 (2020), “Puzzle” Mr. Queen OST Part4 (with Park Woojin) (2021), “Don’t Smile At Me” Hello, Me! OST Part 6 (2021), “Paradise” Idol: The Coup OST Part.1 (2021), “Breath” A Kiss At Tiffany’s OST Part.1 (2021)
Collabs: Dream (with EXO’s Baekhyun), Don’t Wait For Your Love (with Park Won), Because I Love You (with Kang Seungwon)
OSTs: “Dream High” Dream High OST Part.1 (with 2PM’s Taecyeon & Wooyoung, Kim Soohyun, and JOO) (2011), “Winter Child” Dream High OST Part 2 (2011), “So Many Tears” Me Too, Flower! OST Part 2 (2011), “I Still Love You” Big OST (2012), “Don’t Forget Me” Gu Family Book OST Part.5 (2013), “Why Am I Like This?” The Time We Were Not in Love OST Part.5 (2015), “Ring My Bell” Uncontrollably Fond OST Part.1 (2016), “When We Were” Uncontrollably Fond OST Part.15 (2016), “I Love You Boy” While You Were Sleeping OST Part.4 (2017), “Words I Want To Hear” While You Were Sleeping OST Part.13 (2017), “My Dear Love” Start-Up OST Part.14 (2020), “Inevitable” Extraordinary Attorney Woo OST Part.5 (2022)
Korean: Play U [Digital Single], White Winter [Digital Single], 8th Grade Syndrome [Digital Single], Valentine’s Day [Digital Single], White Day [Digital Single], Lovely Day [Digital Single],Try Again, After Winter [Digital Single], Gray Area [Digital Single], Love Street [Digital Single], Little Witch [Digital Single], Circus [Digital Single]