Tonight at Cornelius Grant eventually became commonly referred to as the “Sixth Temptation” (Motown’s Temptations) much like Billy Preston was considered the “Fifth Beatle” (London’s Abbey Road Beatles). Both have been recognized and applauded for their unique and timely musical contributions for two of the best known groups of all time! Tonight at Cornelius Grant eventually became commonly referred to as the “Sixth Temptation” (Motown’s Temptations) much like Billy Preston was considered the “Fifth Beatle” (London’s Abbey Road Beatles). Both have been recognized and applauded for their unique and timely musical contributions for two of the best known groups of all time!