Real name: Jukka Tapani Koivisto

Finnish singer and very successful songwriter born on December 31, 1953 in Pori, Finland and died on August 20, 2009 in Rauma, Finland.

He was the lead vocalist in Hariolax, a group formed in the mid 70s Rauma. Koivisto is the only one that has done thrice the composing, lyrics and arrangements to the winning song of Syksyn Sävel - an annual song contest in Finland. He used also a pseudonym Juhana.