William Daniel McCafferty (14 October 1946 – 8 November 2022) was a vocalist and songwriter best known as the lead singer for the Scottish hard rock band Nazareth from its founding in 1968 to his retirement from touring with the band in 2013.
https://en.wikipedia.org/wiki/Dan_McCafferty
https://www.guitarworld.com/news/nazareth-singer-dan-mccafferty-dies-aged-76