Olavi Virta has been played on NTS shows including Supporter Radio - Heartbreak, with Perfidia first played on 13 April 2023.

Olavi Virta (Oskari Olavi Ilmén until 1926) (27 February 1915, Sysmä - 14 July 1972, Tampere) was a Finnish singer, acclaimed as the king of Finnish tango