Kalmer Tennosaar (23 November 1928, Kiidjärve, Vastse-Kuuste Parish – 20 September 2004, Tallinn) was an Estonian singer and Eesti Televisioon journalist. He was popular in Soviet times as a soloist of the Popular Music Orchestra of the Estonian Radio and Television. Kalmer Tennosaar began as a presenter at ETV on 1 January 1956, and subsequently worked as an editor and fellow of music programmes (1957–1962, and then after 1968). He became very