The McCoys were a rock group formed in Union City, Indiana, United States, in 1962. They are best known for their 1965 hit single "Hang on Sloopy". Their name was changed from Rick and the Raiders to The McCoys, taken from the B-side of The Ventures' hit record "Walk, Don't Run" titled "The McCoy".
In Autumn 2020, another band was established in the UK calling themselves The McCoys. Their repertoire is based on 60s pop music, including "Hang On Sloopy" by Wes Farrell and Bert Berns.
There appears to be no connection between these two instances of bands with the same name, other than the family name of one member in the 2020 instance having the family name of McCoy.