Finnish singer, born on 17 August 1945 in Tohmajärvi, Finland.

Her first song released was Poikien kuvat in 1963. The next year she released one of her most known recordings Puhelinlangat laulaa. Other well known songs of hers are Anna mulle tähtitaivas, Syysunelma, Kuudenikäinen, Katson sineen taivaan and Katson autiota hiekkarantaa.

She has presented Finland in the Eurovision Song Contest twice, in Israel 1979 with the song Katson sineen taivaan and in Ireland 1993 with the song Tule luo.

In 2007 Katri Helena was awarded The Pro Finlandia Medal of the Order of the Lion of Finland.

She was married to musician Timo Kalaoja until his death in 1988. In 1997 she married author Panu Rajala, they divorced in 2004.