Les Humphries Singers
The Les Humphries Singers was a 1970s musical group formed in Hamburg, Germany in 1969 by the English born Les Humphries (born John Lesley Humphreys, 10 August 1940, in Croydon, Surrey, England - died 26 December 2007, in Basingstoke, Hampshire, England), who had been inspired to do his own version of the Edwin Hawkins Singers.
source: Wikipedia