Lena Martell (born Helen Thomson, 15 May 1945, Possilpark, Glasgow, Scotland) is a Scottish singer, who had a number one UK single with "One Day at a Time" in 1979.[1][2]\r She had released a number of standards throughout the 1970s on the Pye record label and was a popular draw on the cabaret circuit, but her gospel-tinged country cover of the song written by Marijohn Wilkin and Kris Kristofferson proved to be an unlikely success at the height of disco and new wave, topping the UK Singles Chart for three weeks in November 1979.[1] Her follow-up singles failed to chart, so she has the dubious honour of being classified as a one-hit wonder. Nevertheless she placed six albums in the UK Albums Chart between 1974 and 1980, including four that reached the Top 20.