| Name | Alternative/Original Name | Tags |
|---|---|---|
| Kana Nishino | 西野カナ | Female, Japanese, J-Pop |
| Keno | キーノ | Male, Japanese, J-Pop |
| Kiroro | キロロ | Female, Band, Japanese, J-Pop |
| Konata Izumi (Aya Hirano) | 泉こなた（平野綾） | Female, Character, Japanese, J-Pop |
| KOTOKO | Female, Japanese, J-Pop | |
| Kumi Kouda | 倖田來未 | Female, Japanese, J-Pop |
| Kyary Pamyu Pamyu | きゃりーぱみゅぱみゅ | Female, Japanese, J-Pop |
| Linked Horizon | Band, Japanese, J-Pop | |
| LiSA | Female, Japanese, J-Pop | |
| little by little | Band, Japanese, J-Pop | |
| LOREN & MASH | Female, Japanese, J-Pop | |
| Luna Haruna | 春奈るな | Female, Japanese, J-Pop |
| Maaya Sakamoto | 坂本真綾 | Female, Japanese, J-Pop |
| Maaya Sakamoto feat. Steve Conte | Female, English, Collaboration, Japanese, J-Pop | |
| Maki Ohguro | 大黒摩季 | Female, Japanese, J-Pop |
| Makoto Kawamoto | 川本真琴 | Female, Japanese, J-Pop |
| Mari Iijima | Female, Japanese, J-Pop | |
| Masami Okui | 奥井雅美 | Female, Japanese, J-Pop |
| Masami Okui feat. Megumi Hayashibara | Female, Collaboration, Japanese, J-Pop | |
| Masayoshi Yamazaki | 山崎まさよし | Male, Japanese, J-Pop |
| Mashiro Ayano | 綾野ましろ | Female, Japanese, J-Pop |
| Matsuko Mawatari | 馬渡 松子 | Female, Japanese, J-Pop |
| May'n / Megumi Nakajima | May'n/中島愛 | Female, Collaboration, Japanese, J-Pop |
| Megumi Hayashibara | 林原めぐみ | Female, Japanese, J-Pop |
| Megumi Hinata | 日向めぐみ | Female, Japanese, J-Pop |