are a Japanese husband and wife duo who recorded the song Oshiri Kajiri Mushi

Oshiri Kajiri Mushi

is a children's song in Japan that broke into the top 10 singles charts. The music video and song were created by the husband and wife duo Uruma Delvi.- Overview :...

, or "bottom-biting bug." The song was intended to encourage people who live in big cities to spontaneously interact with each other.

The video debuted in June 2007 on the children's music video program Minna no Uta

Minna no Uta

, literally Everyone's Songs, is a five minute NHK TV and radio program broadcasting several times daily since 1961. The program is generally used as filler at the end of regular television programs...

. Videos typically remain in rotation for two months on Minna no Uta

Minna no Uta

, literally Everyone's Songs, is a five minute NHK TV and radio program broadcasting several times daily since 1961. The program is generally used as filler at the end of regular television programs...

, but Oshiri Kajiri Mushi

Oshiri Kajiri Mushi

is a children's song in Japan that broke into the top 10 singles charts. The music video and song were created by the husband and wife duo Uruma Delvi.- Overview :...

is the longest-running video on the program as it aired continuously for over five months. The song climbed up to number 8 from outside the top 100 on Oricon, the singles chart in Japan, and steadily climbed the charts to number 6 in the Fall of 2007. The cartoon bug featured in UrumaDelvi's music video will star in its own cartoon program.