There are four (and probably more) artists with the same name, Kiva.
1) A Canadian overtone singer/ keyboardist, based in Prague. Also known as Kiva Simova.
Kiva specializes in overtone singing. Her music is otherworldly world beat/ folk/ nu-jazz with lots of global rhythmic grooves, invoking Bobby McFerrin, Jane Siberry, Lisa Gerrard. She directs her own experimental overtone choir, AURALIA in Prague, and has two solo CDs 'The Ladder' ('98) and 'Pulse' ('05).