YOASOBI
YOASOBI is the Japanese duo of songwriter-producer Ayase and vocalist ikura, built around the concept of turning fan-submitted short stories into pop songs — a mission statement baked into their name, a portmanteau of 'yoru' (night) and 'asobi' (play). Ayase writes and arranges everything alone on his laptop, prototyping vocals in Hatsune Miku before ikura records the final take, carrying the meticulous, solitary workflow he learned as a Vocaloid producer straight into mainstream J-pop. Since the 2019 breakout "Yoru ni Kakeru," the duo has become one of Japan's biggest exports, with "Idol" — the Oshi no Ko theme — turning into a global streaming phenomenon in 2023.
Ayase has said he only discovered Vocaloid because a friend played him Neru's 'Jailbreak,' heard first through a fan cover — the shock of a bedroom producer building a full, hard-charging rock arrangement around a synthesized voice sent him down the Niconico rabbit hole that led directly to YOASOBI's all-DIY, Miku-scratch-vocal workflow.
listen forCue up Neru's driving, distorted 'Jailbreak' and then YOASOBI's breakout 'Yoru ni Kakeru' — listen for the same clipped, urgent vocal phrasing racing to keep pace with a hard-charging rock backbeat, a habit Ayase carried over wholesale from his Vocaloid days.
Ayase has named Radwimps among the mainstream J-rock acts he grew up on, and vocalist ikura cites them too — the band's knack for stacking a wordy, tumbling Japanese lyric onto a big, anthemic chorus without losing momentum is a template YOASOBI leans on constantly.
listen forPlay Radwimps' insert-song hit 'Nandemonaiya' next to YOASOBI's 'Gunjou' — both pair a conversational, almost-too-fast vocal delivery with a widescreen, string-and-guitar swell built to peak in the final chorus.
Ayase has singled out Mariya Takeuchi as a formative listen, and her glossy, groove-forward city pop surfaces in YOASOBI's slower, funkier singles — proof that beneath the Vocaloid-honed production sits an older, very Japanese pop lineage.
listen forSet Takeuchi's 'Plastic Love' against YOASOBI's 'Tabun' — both ride a laid-back, syncopated bassline and glossy chord voicings under a breezy, conversational vocal, trading urgency for pure groove.