Facts: - years active: 1996 -- present - origin: tokyo , japan - genre: downtempo rock , trip hop , alternative rock , experimental - name: nana - background: group_or_band - label: gutbounce , one dot records , gut/for life records , warner music japan - current members: chikako watanabe shigeo tamaru Based on these bullet points, write a short biography describing the life of nana -lrb- band -rrb- .
Answer:
nana is a japanese musical duo from tokyo , japan , consisting of chikako watanabe and shigeo tamaru .their music draws on several influences including alternative rock , experimental rock , trip hop and downtempo .