Before the soul and disco hits, Bill Curtis’ Fatback Band were one of the tightest funk groups in the world, and their catalogue threw up several rarities.

‘Dance Girl’ was their final single released in 1974 before they signed to Event/Spring. A New York block party classic that was deleted when the Perception label went bust. It was so popular at the time that it was covered by the Rimshots once it became unobtainable.

‘Keep On Brother Keep On’ was the group’s second single on Bill’s own BC Projects II label. It is a sought-after collectable on its original 1971 press, likely to set you back over £1000 for a copy.