Mary Hopkin (born 3 May 1950), credited on some recordings as Mary Visconti from her marriage to Tony Visconti, is a Welsh singer best known for her 1968 UK number 1 single “Those Were the Days“. She was one of the first artists to be signed to the Beatles‘ Apple label.

Hopkin was born into a Welsh-speaking family in Pontardawe, Wales; her father worked as a housing officer. She took weekly singing lessons as a child and began her musical career as a folk singer with a local group called the Selby Set and Mary. She released an EP of Welsh-language songs for a local record label called Cambrian, based in her hometown, before signing to Apple Records, owned by the Beatles, one of the first artists to do so. The model Twiggy saw her winning the ITV television talent show Opportunity Knocks and recommended her to Paul McCartney.