Vocaloid songs that shine as male-male duets. Masterpieces that get you fired up and pumped

Sugarless PotionMaboemu

Sugarless Potion / Maboemu feat. Kagamine Len, KAITO

A thrilling duet song where the shadow of a serial murder case creeps into a sweet moment at a café.

Released in February 2022, its strong storytelling captivates listeners.

Despite the light, upbeat melody, the lyrics lead to a shocking conclusion that will make you swallow hard.

If you sing it with a friend, you can fully immerse yourselves in this mysterious tale by taking on the roles of the two characters.

FragileNuyuri

Fragile [Game Size ver.] / Kagamine Len × KAITO

This is the version of “Fragile,” released by Vocaloid producer Nuyuri in September 2016, sung by Kagamine Len and KAITO.

Its stylish sound arrangement draws you into a lyrical world that reflects a heart that feels on the verge of breaking.

The lyrics sound like a monologue, yet also like words addressed to someone specific, inspiring listeners to imagine a variety of stories.

Be sure to give it a careful listen!

LailaCagayake

Laila – KAITO & Kagamine Len

This is a work by Cagayake that swirls with emotions for someone you’re helplessly drawn to.

Released in January 2025, the track features KAITO’s enveloping low register and Kagamine Len’s clear high notes crossing with a sultry sheen.

The synergy between that vocal work and the cool electronic sound is outstanding.

And the lyrics, infused with the pain of unrequited love, are truly heart-wrenching.

If you’re struggling with feelings that have nowhere to go, you might find yourself reflected in their two voices.

OVERDRIVEMerokuru

OVERDRIVE / Merokuru & WEEZL feat. KAITO, Kagamine Len

A collaborative song by Merokuru and WEEZL where KAITO and Kagamine Len fiercely spark against each other.

Released in February 2025, this work vividly captures their fiery determination to push past their limits—even as they provoke one another—riding on an aggressive electro sound.

The fact that the creators themselves post rhythm game–related content is another delightful touch for fans.

The track’s structure, which culminates in a powerful cheer, makes it perfect for singing with friends and getting into the best mood.

A must-play when you want to boost your spirits!

Ice IgnitionMaboemu

Freezing Point Fire / Maboemu feat. Kagamine Len & KAITO

This is a song by Maboemu that portrays a violent, pathological drama of love and hate, where a frozen heart turns into flames of jealousy and obsession.

The powerful vocals and whisper-like voice intertwine as if between perpetrator and victim, shaking the listener to the core.

The dark, decadent worldview—featuring a burning desire for control and a sense of guilt within a cold relationship—is irresistibly captivating.

Be sure to check out this Vocaloid track that you won’t be able to take your eyes off.

MedusavichMaboemu

Medusabitch / Kagamine Len, KAITO

A song by Maboemu that stylishly portrays the darker sides of the human heart—jealousy and the desire to control.

Released in August 2022, it features a cool, piano-driven electronic sound that’s incredibly addictive.

The lyrics project an attitude that seems to disdain everything and everyone but oneself, while revealing a fierce obsession lurking beneath, making the narrative thrilling to follow.

Experience this gripping clash of emotions for yourself.

Preserve!Hizaki P

Preserve! / Kagamine Len & KAITO

This is a duet song by Higasaki-P featuring a lively back-and-forth between Kagamine Len and KAITO.

With a skillful structure that switches perspectives within the story, it beautifully conveys the two characters’ feelings as they circle around the one thing they want to protect.

The contrast between Len’s gallant voice and KAITO’s calm yet strongly resolute tone creates a deeply moving drama.

How about stepping into each part with a friend and experiencing this pure music for yourselves?