| 23Inglés, Coreano CHAT-SHIRE | |
| 4AMInglés, Coreano Last Fantasy | |
| A DreamerCoreano Growing Up | |
| Beautiful DancerInglés, Japonés Can You Hear Me? | |
| Black OutInglés, Coreano Palette | |
| BluemingCoreano, Inglés Love Poem | Traducción |
| BooCoreano Growing Up | |
| CelebrityInglés, Coreano LILAC | |
| CoinInglés, Coreano LILAC | |
| Every Sweet DayInglés, Coreano Lost and Found | |
| Everything's AlrightInglés, Coreano Last Fantasy | |
| FairytaleInglés, Japonés Can You Hear Me? | |
| Feel So GoodInglés, Coreano Lost and Found | |
| FluInglés, Coreano LILAC | |
| Good Day (Japanese version)Japonés, Inglés | Traducción |
| HavanaCoreano Modern Times | |
| Last FantasyCoreano Last Fantasy | |
| Love AttackInglés, Coreano IU...IM | |
| Love PoemInglés, Coreano Love Poem | Traducción |
| Love wins allCoreano | Traducción |
| Modern TimesCoreano Modern Times | |
| Monday AfternoonInglés, Japonés Single | |
| Mother Nature (H₂O)Coreano 강승원 이집 PART.3 - Mother Nature (H₂O) | |
| New WorldInglés, Japonés Can You Hear Me? | |
| ObliviateCoreano Modern Times | Traducción |
| Rain DropCoreano I□U | |
| Red QueenCoreano CHAT-SHIRE | |
| Shh..Inglés, Coreano The Winning | |
| ShopperInglés, Coreano The Winning | |
| strawberry moonInglés, Coreano strawberry moon – single | |
| TeacherCoreano Last Fantasy | |
| The Age Of CathedralsInglés Can You Hear Me? | |
| TruthInglés, Japonés Can You Hear Me? | |
| unluckyInglés, Coreano Love Poem | |
| Voice Mail (Korean version)Coreano Modern Times | |
| Voice-MailJaponés Can You Hear Me? | |
| あなたと私 (Anata to watashi)Japonés | |
| 夢色パティシエール (Yumeshoku pathishie-ru)Japonés | |
| 小言 (Kogoto)Japonés | |
| 가여워 (Pitiful) (gayeowo)Coreano Growing Up | |
| 가을 아침 (Autumn Morning) (ga-eul achim)Coreano 꽃갈피 2 (A Flower Bookmark II) (2017) | |
| 개여울 (By The Stream) (gaeyeou)Coreano 꽃갈피 2 (A Flower Bookmark II) (2017) | |
| 겨울잠 (Winter Sleep) (gyeouljam)Coreano Pieces | Traducción |
| 관객이 될게 (I stan U) (gwangaeg-i doelge)Coreano The Winning | |
| 그 사람 (The Visitor) (geu salam)Inglés, Coreano Love Poem | |
| 그 애 참 싫다 (Don't Like Her) (geu ae cham silhda)Coreano Spring Of A Twenty Year Old | |
| 그러는 그대는Coreano | |
| 그렇게 사랑은 (Love Alone) (geuleohge salang-eun)Coreano Palette | |
| 금요일에 만나요 (Friday) (geum-yoil-e mannayo)Coreano Modern Times - Epilogue | |
| 기다려 (Wait) (gidalyeo)Coreano Modern Times | |
| 기차를 타고 (Taking A Train) (gichaleul tago)Coreano IU...IM | |
| 길 잃은 강아지 (A Lost Puppy) (gil ilh-eun gang-aji)Coreano Last Fantasy | |
| 꽃 (Flower) (kkoch)Coreano 꽃갈피 (Flower Bookmark) | |
| 꿈빛 파티시엘Japonés | |
| 꿍따리 샤바라 (Boom Ladi Dadi) (kkungttali syabala)Coreano 꽃갈피 (Flower Bookmark) | |
| 나 말고 넷 (Four Without Me) (na malgo nes)Coreano Growing Up | |
| 나만 몰랐던 이야기 (The Story I Didn't Know) (naman mollassdeon iyagi)Coreano REAL+ | |
| 나의 옛날이야기 (My Old Story) (naui yesnal-iyagi)Coreano 꽃갈피 (Flower Bookmark) | |
| 너 (You) (neo)Coreano Pieces | |
| 너랑 나 (You & I) (neolang na)Coreano Last Fantasy | |
| 너의 의미 (Meaning of You) (neoui uimi)Coreano 꽃갈피 (Flower Bookmark) | |
| 누구나 비밀은 있다 (Everybody Has Secrets) (nuguna bimil-eun issda)Coreano Modern Times | Traducción |
| 느리게 하는 일 (What I'm Doing Slow) (neulige haneun il )Coreano Real | |
| 돌림노래 (Troll) (dollimnolae)Inglés, Coreano LILAC | |
| 두근 두근 데이트 (Heart Beating Date) (dugeun dugeun deiteu)Inglés, Coreano IU...IM | |
| 드라마 (Drama) (deulama)Coreano Pieces | |
| 라망 (L'amant) (lamang)Coreano Last Fantasy | |
| 라일락 (LILAC) (laillag)Inglés, Coreano LILAC | |
| 러브레터 (Love Letter) (leobeuleteo)Coreano Pieces | |
| 레옹 (Leon)Coreano Yeongdong Highway Music Festival | |
| 마쉬멜로우 (Marshmallow) (maswimellou)Inglés, Coreano IU...IM | |
| 마음 (Heart) (ma-eum)Coreano CHAT-SHIRE | |
| 마주보기 (바라보기 그 후) [Face to Face (After Looking At You)] (majubogi (balabogi geu hu))Inglés, Coreano Growing Up | |
| 마침표 (Full Stop) (machimpyo)Coreano Palette | |
| 매일 그대와 (Everyday With You) (maeil geudaewa)Coreano 꽃갈피 2 (A Flower Bookmark II) (2017) | |
| 무릎 (Knee) (muleup)Coreano CHAT-SHIRE | |
| 미리 메리 크리스마스 (Merry Christmas Ahead) (mili meli keuliseumaseu)Inglés, Coreano Real | |
| 미아 (Lost Child) (mia)Coreano Lost and Found | |
| 미운 오리 (Ugly Duckling) (miun oli)Coreano Lost and Found | |
| 바라보기 (Looking At You) (balabogi)Inglés, Coreano Growing Up | |
| 밤편지 (Through the Night) (bampyeonji)Coreano Palette | |
| 벽지무늬 (Wallpaper Patterns) (byeogjimunui)Coreano Last Fantasy | |
| 별을 찾는 아이 (A Child Searching for Stars) (byeol-eul chajneun ai)Coreano Last Fantasy | |
| 복숭아 (Peach) (bogsung-a )Coreano Spring of a Twenty Year Old | |
| 봄 안녕 봄 (Hi Spring Bye) (bom annyeong bom)Coreano LILAC | |
| 분홍신 (The Red Shoes) (bunhongsin)Inglés, Coreano Modern Times | |
| 비밀 (Secret) (bimil)Coreano Last Fantasy | |
| 비밀의 화원 (Secret Garden) (bimil-ui hwawon)Coreano 꽃갈피 2 (A Flower Bookmark II) (2017) | |
| 빈 컵 (Empty Cup) (bin keob)Inglés, Coreano LILAC | |
| 삐삐 (BBIBBI) (ppippi)Inglés, Coreano Single | |
| 삐에로는 우릴 보고 웃지 (Pierrot Laughs At Us) (ppieloneun ulil bogo usji)Coreano 꽃갈피 (Flower Bookmark) | |
| 사랑니 (Wisdom Tooth) (salangni)Coreano Last Fantasy | |
| 사랑이 잘 (Can‘t Love You Anymore) (salang-i jal)Coreano Palette | Traducción |
| 사랑이 지나가면 (When Love Passes By) (salang-i jinagamyeon)Coreano 꽃갈피 (Flower Bookmark) | |
| 삼촌 (Uncle) (samchon)Coreano Last Fantasy | |
| 새 신발 (Shoes) (sae sinbal (Shoes))Coreano CHAT-SHIRE | |
| 소격동 (Sogyeokdong)Coreano | |
| 스물셋 (Twenty Three) (seumulses)Inglés, Coreano CHAT-SHIRE (EP) (2015) | |
| 시간의 바깥 (Above The Time) (sigan-ui bakkat)Coreano Love Poem | |
| 싫은 날 (Bad Day) (silh-eun nal)Coreano Modern Times | |
| 아라로 (Araro)Coreano | |
| 아이야, 나랑 걷자 (Walk With Me, Girl) (aiya, nalang geodja)Coreano Modern Times | |
| 아이와 나의 바다 (My Sea) (aiwa naui bada)Coreano LILAC | |
| 아침 눈물 (Tear drops in the morning) (achim nunmul)Coreano IU...IM | |
| 안경 (Glasses) (angyeong)Coreano CHAT-SHIRE | |
| 애인이 생기면 하고 싶은 일 (aein-i saeng-gimyeon hago sip-eun il)Coreano 가요대전 2011 | |
| 어젯밤 이야기 (Last Night Story) (eojesbam iyagi)Coreano 꽃갈피 2 (A Flower Bookmark II) (2017) | |
| 어푸 (Ah puh) (eopu)Inglés, Coreano LILAC | |
| 어허야 둥기둥기 (Eoheoya Dunggidunggi)Coreano 꽃갈피 (Flower Bookmark) | |
| 얼음꽃 (eol-eumkkoch)Coreano 얼음꽃 (SBS 김연아의 KISS & CRY, 2011) | |
| 에잇 (Eight)Inglés, Coreano CD single | |
| 에필로그 (Epilogue) (epillogeu)Coreano LILAC | |
| 여름밤의 꿈 (Dreams in Summer Night) (yeoleumbam-ui kkum)Coreano 꽃갈피 (Flower Bookmark) | |
| 우울시계 (Gloomy Clock) (uulsigye)Coreano Modern Times | |
| 을의 연애 (Love of B) (eul-ui yeon-ae)Coreano Modern Times | |
| 이 지금 (Dlwlrma) (i jigeum)Inglés, Coreano Palette | |
| 이게 아닌데 (Not like this) (ige aninde )Coreano Real | |
| 이런 엔딩 (Ending Scene) (ileon ending)Coreano Palette | |
| 이름에게 (Dear Name) (ileum-ege)Coreano Palette | |
| 입술 사이 [50cm (Between the lips)] (ibsul sai)Inglés, Coreano Modern Times | |
| 있잖 아 (You Know) (issjanh a)Inglés, Coreano Lost and Found | |
| 잊어야 한다는 마음으로 (With the Heart to Forget You)Coreano Cd single | |
| 자장가 (Lullaby) (jajang-ga)Coreano Love Poem | |
| 잔소리 (Nagging) (jansoli)Coreano I□U | |
| 잔혹동화 (Cruel Fairytale) (janhogdonghwa)Inglés, Coreano Only I Didn't Know | |
| 잠 못 드는 밤 비는 내리고 (Sleepless Rainy Night) (jam mos deuneun bam bineun naeligo)Coreano 꽃갈피 2 (A Flower Bookmark II) (2017) | |
| 잠자는 숲 속의 왕자 (Sleeping Prince of the Woods) (jamjaneun sup sog-ui wangja)Coreano Last Fantasy | |
| 잼잼 (Jam Jam) (jaemjaem)Inglés, Coreano Palette | |
| 정거장 (Next Stop) (jeong-geojang)Coreano Pieces | Traducción |
| 제제 (Zezé) (jeje)Coreano CHAT-SHIRE | |
| 졸업하는 날 (Graduation Day) (jol-eobhaneun nal)Coreano Growing Up | |
| 좋은 날 (Good Day) (joh-eun nal)Inglés, Coreano Real | |
| 첫 이별 그날 밤 (The night of the first breakup) (cheos ibyeol geunal bam )Coreano Real | |
| 크레파스 (Pastel Crayon) (keulepaseu)Coreano Modern Times - Epilogue | |
| 팔레트 (Palette) (palleteu)Inglés, Coreano Palette | |
| 푸르던 (The Shower) (puleudeon)Coreano CHAT-SHIRE | |
| 하루 끝 (Every End of the Day) (seumu sal-ui bom - halu kkeut)Coreano Spring Of A Twenty Year Old | |
| 한낮의 꿈 (Daydream) (hannaj-ui kkum)Coreano Modern Times | |
| 혼자 있는 방 (In A Room Alone) (honja issneun bang )Coreano Real | |
| 홀씨 (Holssi) (holssi)Inglés, Coreano The Winning | |
