UrumaDelvi (うるまでるび) are a Japanese husband and wife duo[1] who recorded the song "Oshiri Kajiri Mushi", or "bottom-biting bug.
"[2][3] The song was intended to encourage people who live in big cities to spontaneously interact with each other.
[5] The cartoon bug featured in UrumaDelvi's music video stars in his own anime series.
[6] In 2013, UrumaDelvi teamed up with Ryuichi Sakamoto of Yellow Magic Orchestra and David Byrne of Talking Heads to make a music video set to the song "Psychedelic Afternoon".
[7][8] In 1996, UrumaDelvi created some songs and artwork for the children's computer game SimTunes.