When I used to go on holiday to Jamaica, (10 years on the trot), we
used to go to an "oldies" dance although they called it old-hits.
Along with lots of old style Ska, Calypso etc. there was always quite a bit
on R&B, Doo-wop and early soul being played alongside it.
When I asked why, the DJ said that's how it was back in the early
sixties.
Kegsy