There were at least two different groups with the name The Mystics.

1.) The Mystics, Brooklyn, NY, USA
2.) The Mystics, Macau / Hong Kong

1.) The Mystics are a singing group which began in Brooklyn, New York, USA in the late 1950s. The group was known as The Overons, a quintet that, when signed to Laurie Records, consisted of Phil Cracolici (b. 1937, lead), Albee Cracolici (b. 1936, baritone), George Galfo (b. 1939, second tenor), Bob Ferrante (b. 1936, first tenor), and Al Contrera (b. 1940, bass). Under the direction of their manager, Jim Gribble, The Overons became The Mystics when each group member wrote a name they liked on a slip of paper, placed the papers in a hat and Al Contrera's choice was drawn.

2.) The Mystics were formed in 1965 during the glory years of HK’s English pop scene. The members largely comprised of hkongers of Portugese decent. The band was popular at the school parties and “tea dances”, and recorded chart toppers like I can’t help myself, Sweet soul music, Midnight hour, Going out of my head, Song of the wind, One day (sang by Don Choi) and Send her back (composed by Michael Remedios and Tony Tavares). They disbanded in 1971.