Jonathan Stewart Vickers, CC (October 29, 1926 – July 10, 2015), known professionally as Jon Vickers, was a Canadian heldentenor.Born in Prince Albert, Saskatchewan, he was the sixth in a family of eight children. In 1950, he was awarded a scholarship to study opera at The Royal Conservatory of Music in Toronto. In 1957 Vickers joined London’s Royal Opera House, Covent Garden company. In 1960 he joined the Metropolitan Opera.