Kana Uemura (植村 花菜, Uemura Kana, born 4 January 1983), known professionally as Ka-Na,^[1] is a Japanese singer-songwriter, who debuted in 2004. She is best known for her song "Toilet no Kamisama", an acoustic ballad about her grandmother, which became a hit in 2010.

Uemura first became interested in music, after watching Julie Andrews performance in the 1965 film The Sound of Music.^[2] In 2002, she started learning the guitar, as well as writing her own songs and doing street performances.^[2]