SIRUP & Ayumu Imazu Drop a Sleek R&B Hit “UNDERCOVER” with a Twist

What happens when two of Japan’s most genre-defying voices step into the same room? You get “UNDERCOVER feat. Ayumu Imazu” – a slick, stylish R&B cut that hits hard and lingers long after the beat fades. Out now on all platforms, this is the first official collaboration between SIRUP and Ayumu Imazu, and it doesn’t hold back.

Produced by Taka Perry, “UNDERCOVER” slips between the lines of our digital lives – the faces we show, the ones we hide – and sets that tension to a hypnotic groove. SIRUP’s effortless vocals meet Ayumu’s smooth bilingual flow, creating a late-night anthem for the double life we all live online and IRL.

The music video levels it up. 

Directed by Daiki Kamoshita, it’s cinematic, action-packed, and full of duality. Saori Izawa(known for stunt work in Kingdom and Rurouni Kenshin) brings sharp fight choreography, while Ayumu himself steps in as choreographer for the final dance – a mirror-like showdown that brings it all home.

It’s sleek. It’s sharp. It’s UNDERCOVER. And it’s proof that when the right artists connect, the result isn’t just a song – it’s a whole world.