It’s over (Inst.) (Instrumental)
Album: Triple Some 2 OST Part.2It’s over
Album: Triple Some 2 OST Part.2Half (Instrumental)
Album: HalfHalf
Album: HalfMy December
Album: My DecemberMy December (Instrumental)
Album: My DecemberEven Though Me (Prod. Kim Hyun-Chul)
Album: Even Though MeDear. My Fool
Album: Dear. My FoolSad eyes
Album: SR PROJECT VOL.2Why
Album: Saimdang, Memoir of Colors OSTHAVE A DRINK TODAY
Album: HAVE A DRINK TODAYHAVE A DRINK TODAY (Instrumental)
Album: HAVE A DRINK TODAYOnly One (Instrumental)
Album: Cinderella & Four Knights, Pt. 7 (Original Soundtrack)Only One
Album: Cinderella & Four Knights, Pt. 7 (Original Soundtrack)Make heart to hate (Instrumental)
Album: Color Series Part.3 BLACKMake heart to hate
Album: Color Series Part.3 BLACKI know well myself
Album: Color Series Part.3 BLACKI know well myself (Instrumental)
Album: Color Series Part.3 BLACKFAREWELL RIDDEN (Instrumental)
Album: Color Series Part.2 BLUEFAREWELL RIDDEN
Album: Color Series Part.2 BLUEJUST BE FRIENDS (Instrumental)
Album: Color Series Part.2 BLUEJUST BE FRIENDS
Album: Color Series Part.2 BLUESOMETIMES (inst) (Instrumental)
Album: SHE WAS PRETTY OSTTHE MAN (Instrumental)
Album: WHITETHE MAN
Album: WHITETEARS (Instrumental)
Album: WHITETEARS
Album: WHITENostalgic autumn (Duet. Hong Dae Kwang)
Album: Nostalgic autumnNostalgic autumn (Instrumental)
Album: Nostalgic autumnSOMETIMES
Album: She Was Pretty OST Part.2Stardust (Byeol Meon Ji)
Album: SPY Original SoundtrackIt’s raining (inst) (Instrumental)
Album: It’s rainingIt’s raining
Album: It’s rainingmissing you
Album: Heart B THE SECOND SINGLE “missing you”missing you (inst) (Instrumental)
Album: Heart B THE SECOND SINGLE “missing you”Bad Habit (Instrumental)
Album: Bad HabitBad Habit
Album: Bad HabitMISSING YOU
Album: Zia Compilation Violinviolin
Album: Zia Compilation Violinviolin (Piano Ver.) (PIANO VER.)
Album: Zia Compilation ViolinMISSING YOU (Piano Ver.) (PIANO VER.)
Album: Zia Compilation Violindoll
Album: Zia Compilation ViolinRumor (Instrumental)
Album: RumorRumor
Album: RumorDon’t Worry Be Happy
Album: Falling In FallFalling In Love (Instrumental)
Album: Falling In FallFalling In Love (Duet With Hwanhee)
Album: Falling In FallLike Nothing Ever Happened
Album: Falling In FallLap Blanket
Album: Falling In FallPretend To Be Okay (Instrumental)
Album: Falling In FallPretend To Be Okay
Album: Falling In FallI Can’t Eat Anything
Album: Falling In FallI'm Good
Album: ZIA 03rd Album Repackage (Such A Woman)Because I Love You
Album: ZIA 03rd Album Repackage (Such A Woman)The Lie
Album: ZIA 03rd Album Repackage (Such A Woman)When I Miss You
Album: ZIA 03rd Album Repackage (Such A Woman)Loved You (With Seo In Guk)
Album: ZIA 03rd Album Repackage (Such A Woman)Such A Woman (CD Ver.)
Album: ZIA 03rd Album Repackage (Such A Woman)Have You Ever Cried
Album: ZIA 03rd Album Repackage (Such A Woman)Such A Woman (With Yezi, Cheska of FIESTAR)
Album: ZIA 03rd Album Repackage (Such A Woman)Hurt (feat. LE of EXID)
Album: ZIA 03rd Album Repackage (Such A Woman)To Be Expected
Album: ZIA 03rd Album Repackage (Such A Woman)If You Loved Me (With Lee Hae Ri of DAVICHI)
Album: ZIA 03rd Album Repackage (Such A Woman)Broken Up
Album: ZIA 03rd Album Repackage (Such A Woman)Loved You (With Seo In Guk)
Album: After 11 DaysSuch A Woman (feat. Yezi of FIESTAR)
Album: After 11 DaysTo Be Expected (Instrumental)
Album: To Be ExpectedIf You Loved Me (inst) (Instrumental)
Album: If You Loved MeIf You Loved Me
Album: If You Loved MeWith Coffee
Album: With CoffeeFor a year
Album: ANEMONEAlone in my room
Album: ANEMONETears falling down (feat. Park Kyung of Block B)
Album: ANEMONEI need you (Duet with Huh Gak)
Album: ANEMONEEven if you forget me
Album: ANEMONEDEPRESSED (HAVE A DRINK PART.2)
Album: DEPRESSEDThe Way I Am (Instrumental)
Album: AvancerJust Once More
Album: AvancerHope It's you (Instrumental)
Album: AvancerWriting The Love (With Mir Of MBLAQ)
Album: AvancerHope It's you (With K.Will)
Album: AvancerWho Lied To Me
Album: AvancerThe Way I Am (feat.Ha Dong-Kyun)
Album: AvancerThis Is My Song
Album: AvancerNot Going Anywhere
Album: AvancerThe First Day After Breaking Up
Album: Avancer24 Hours (With Park Jung-Ah)
Album: AvancerHope it's you (With K.Will)
Album: Hope It's youWriting the love (With Mir of MBLAQ)
Album: Hope It's youHope it's you (Instrumental)
Album: Hope It's youPlease don't go (Instrumental)
Album: The tears fall in the winterBecause of Cold
Album: The tears fall in the winterIf we got much money
Album: The tears fall in the winterPlease don't go
Album: The tears fall in the winterWhat time,What date,What month (feat. Mighty Mouth)
Album: The tears fall in the winterWhy do I hurt
Album: The tears fall in the winter(Bonus Track) Crying Calling (with 4Men)
Album: The tears fall in the winterCrying Calling (inst) (Instrumental)
Album: Crying CallingCrying Calling
Album: Crying Calling(don't) Go
Album: DIFFERENCEI have a favor to ask of time (feat. Seeya Yun Ji)
Album: DIFFERENCEPlease teach love (feat. K.will)
Album: DIFFERENCELaughter only
Album: DIFFERENCELaughter only (Instrumental)
Album: DIFFERENCEI want to trust you
Album: DIFFERENCEThe feelings that I cannot feel
Album: DIFFERENCELet's Have a Drink (Instrumental)
Album: ATELIERAfter the Day
Album: ATELIERDon't Forget
Album: ATELIERPlease Love Me
Album: ATELIERLike her (Instrumental)
Album: ATELIERLike her
Album: ATELIERLet's Have a Drink
Album: ATELIERlet’s have a drink
Album: Let's Have a Drinkwould you smile?
Album: Road MovieMom I am sorry
Album: Road MovieI love you I am sorry
Album: Road Movieold clothe
Album: Road Movievacantly
Album: Road Moviewhat should I do
Album: Road MovieIn a distance
Album: Road MovieI see only you (feat. TOP)
Album: Road MovieI am hapy
Album: Road Moviebarely
Album: Road MovieFull-hearted
Album: Road Moviefrom Shinchon to Hongdae
Album: Road Moviestars
Album: Road MovieI love you I am sorry (Piano Ver.)
Album: Road MovieI know nothing but you
Album: Road Movieconfession
Album: Road Moviegazing blankly
Album: Voice Of Heavengazing blankly (Piano Ver.)
Album: Voice Of Heavenguardian angel
Album: Voice Of Heavenof course
Album: Voice Of Heavenmy heart is like a star
Album: Voice Of HeavenThe Love Is Like A Rainwater On The Window
Album: Voice Of Heaven