| Kae — Hoshi ni ikiteru |  |  | |  | Votable | |
| Kagerou — Kusatta umi de oborekaketeiru boku o sukuttekureta kimi |  | |  | | Votable | |
| Kakerabank — NoNoNo | | | | | Votable | |
| Kalafina — believe (Short Ver.) | | | |  | Classique | |
| Kalafina — blaze (Short ver.) | | | | | Classique | |
| Kalafina — far on the water | | | | | Classique | |
| Kalafina — Hyakka ryōran (Short ver.) | | | |  | Classique | |
| Kalafina — into the world (Short vers.) | | | | | Classique | |
| Kalafina — One Light (TV Size ver.) | | | | | Classique | |
| Kalafina — ring your bell | | | | | Classique | |
| Kalafina — Yume no daichi | | | | | Classique | |
| KAMIJO — Heart | | | | | Votable | |
| KAMIJO — Louis (Enketsu no La vie en Rose) | | | | | Classique | |
| KAMIJO — Symphony of The Vampire (short ver.) | | |  | | Votable | |
| Kamitsuki — Where to go |  | | | | Votable | |
| KANA-BOON — Diver | | | | | Votable | |
| KANA-BOON — Run and run | | | | | Votable | |
| KAO=S — AMRITA |  | | | | Votable | |
| KAO=S — Jiware | | | | | Classique | |
| Karasu — Toki no omokage | | | | | Votable | |
| Kariyushi58 — Ai o shinjiteiru | | | | | Votable | |
| KATAHIRA Rina — HIGH FIVE |  | | | | Votable | |
| KATAHIRA Rina — Kono namida o shiranai | | | | | Votable | |
| KATASE Nana — Kindan no telepathy | | | | | Votable | |
| KATASE Nana — Meu amor é … | | | | | Votable | |
| KATASE Nana — Shine | | | | | Votable | |
| KATŌ Miliyah feat. NAKASONE Izumi (HY) — YOU… |  | | | | Votable | |
| KATŌ Miliyah × SHIMIZU Shōta — BELIEVE | | |  | | Votable | |
| KATŌ Miliyah × SHIMIZU Shōta — LOVE STORY | | | | | Votable | |
| KAWABATA Kaname — Breakthrough |  | | | | Votable | |
| KAWABATA Kaname — Let’s Say I Do | | | | | Votable | |
| KAWABATA Kaname — Starship | | | | | Votable | |
| KAWABATA Kaname — TOKYO GIRL | | | | | Votable | |
| Kaya — TABOO | | | | | Votable | |
| KAYAMA Saki — Fly | | | | | Votable | |
| KAYAMA Saki feat. SoulJa — Hontō ni kimi janai no kana… | | | | | Votable | |
| KAYAMA Saki feat. GIORGIO 13 (NERDHEAD) — Issho ni, itai no ni. | | | | | Votable | |
| KAYAMA Saki with LGMonkees — Zuru shinaide chanto aishite yo | | | | | Votable | |
| KBG84 — Come on and Dance Kohamajima | | | | | Votable | |
| KEMURI — I am proud | | | | | Votable | |
| Ketsumeishi — Awaseta te no hira no aida (in between the two palms) | | | | | Votable | |
| Ketsumeishi — Nakama | | | | | Votable | |
| Ketsumeishi — Saraba namida | | | | | Votable | |
| Keyakizaka46 — Futari Saison |  | | | | Votable | |
| Keyakizaka46 — Kaze ni fukarete mo | | | | | Votable | |
| Keyakizaka46 — Sekai ni wa ai shika nai | | | | | Votable | |
| KEYTALK — Lotka-Volterra | | | | | Votable | |
| KEYTALK — STARRING STAR | | | | | Votable | |
| KEYTALK — sympathy | | | | | Votable | |
| KIKKAWA You — DISTORTION | | | | | Votable | |
| KIKKAWA You — Ha o kuishibare | | | | | Votable | |
| KIKKAWA You — Ii jan | | | | | Votable | |
| KIKKAWA You — Sayonara Standard | | | | | Votable | |
| KIKKAWA You — Sekaijū ni kimi wa hitori dake | | | | | Votable | |
| KIKKAWA You — 「Suki」 no kazoekata | | | | | Votable | |
| KIKKAWA You — Tokimeita no ni Through | | | | | Votable | |
| KIMURA Kaela — TODAY IS A NEW DAY | | | | | Votable | |
| Kinniku Shōjo Tai — Zoro me |  | | | | Votable | |
| KIRA — Nadeshiko SOUL | | | | | Votable | |
| KIRINJI — Shinsui shiki | | | | | Votable | |
| Kishidan — Kira Kira! | | | | | Classique | |
| KITADE Nana — Antoinette Blue | | | | | Votable | |
| KIYOKIBA Shunsuke — Tomo e | | | | | Votable | |
| KIYOSHI Ryūjin25 — A·B·C jagutto konai!! | | | | | Votable | |
| KIYOSHI Ryūjin25 — Hard Boiled ni aishite yaruze♡ | | | | | Votable | |
| KIYOSHI Ryūjin25 — Will♥You♥Marry♥Me? | | | | | Votable | |
| KIZUKI Minami — Kizashi |  | | | | Votable | |
| KOBUKURO — Mirai | | | | | Votable | |
| Kobushi Factory Magnolia Factory — Bacchi koi seishun ! |  | | | | Votable | |
| Kobushi Factory Magnolia Factory — Chotto guchoku ni chotosu mōshin | | | | | Classique | |
| Kobushi Factory Magnolia Factory — Eejanaika Ninjanaika | | | | | Votable | |
| Kobushi Factory Magnolia Factory — Nen ni wa nen (Nen iri Ver.) | | | | | Votable | |
| Kobushi Factory Magnolia Factory — Ora wa ninki mono | | | | | Votable | |
| Kobushi Factory Magnolia Factory — Osu! Kobushi-damashii | | | | | Votable | |
| Kobushi Factory Magnolia Factory — Sakura Night Fever | | | | | Classique | |
| Kobushi Factory Magnolia Factory — Samba! Kobushi Janeiro | | | | | Votable | |
| Kobushi Factory Magnolia Factory — Sharara ! Yareru hazu sa | | | | | Votable | |
| KŌDA Kumi — Pink Spider (Short Ver.) | | | | | Votable | |
| KOKIA — Dōke | | | | | Classique | |
| KOKIA — I Believe | | | | | Classique | |
| KOKIA — Kawaranai koto (since 1976) | | | | | Classique | |
| KOKIA — so much love for you♥ | | | | | Votable | |
| KOKIA — The woman | | | | | Classique | |
| KOKIA — time to say goodbye (duet KOKIA & Piano) | | | | | Votable | |
| KOMATSU Mikako — Imagine day, Imagine life! | | | | | Votable | |
| KONDO Yohdi — PAN!!!!! | | | | | Votable | |
| KONNO Takaaki — GeGeGe no Kitarō | | | | | Votable | |
| kous feat. ef — Hitokage, kasanete |  | |  | | Votable | |
| kous feat. Rasa — Usotsuki zōka | | | | | Votable | |
| kous feat. HATSUNE Miku (soft) — Fuyū yume | | | | | Votable | |
| kous feat. HATSUNE Miku (soft) — Sakana | | | | | Votable | |
| kous feat. HATSUNE Miku (soft) — Tsubaki hime | | | | | Votable | |
| kous feat. MEGURINE Luka — Ii ko warui ko | | | | | Votable | |
| KUBOTA Toshinobu — Koe ni dekinai | | | | | Votable | |
| KUBOTA Toshinobu — LOVE RAIN (Koi no ame) | | | | | Votable | |
| KUBOTA Toshinobu feat. Musiq Soulchild — SUKIYAKI (Ue wo muite arukō) | | | | | Votable | |
| KUDŌ Mayu — My Sweet Days | | | | | Votable | |
| KURAKI Mai — Watashi no, shiranai, watashi | | | | | Votable | |
| KURIYAMA Chiaki — Ryūsei no namida | | | | | Votable | |
| KURIYAMA Chiaki — Toyosu☆Luciferin | | | | | Votable | |
| KUROKI Meisa — Are ya Ready? | | | | | Votable | |
| KUROKI Meisa — Bad Girl | | | | | Votable | |
| KUROKI Meisa — Criminal | | | | | Votable | |
| Kuroneko Chelsea — Very Gary Gang | | | | | Votable | |
| Kuroneko Chelsea — YOUNG BLUE | | |  | | Votable | |
| Kyary Pamyu Pamyu — Furisodation |  | | | | Classique | |
| Kyary Pamyu Pamyu — Ii suta | | | | | Classique | |
| Kyary Pamyu Pamyu — Mottai Nightland | | | | | Classique | |
| Kyary Pamyu Pamyu — Sai & Co | | | | | Classique | |
| Kyary Pamyu Pamyu — Tsukema tsukeru | | | | | Classique | |
| Kylee feat. Orianthi — BRAND NEW WAVE | | | | | Votable | |
| Kylee — IT’S YOU | | | | | Votable | |
| Kylee — Kimi ga iru kara | | | | | Votable | |
| Kylee — Mirai | | | | | Votable | |
| Kylee — NEVER GIVE UP! | | | | | Votable | |
| Kyūso Nekokami — NO MORE Rekka jisshaka | | | | | Votable | |
