Ace Records of the U.K. has assembled a suberb collection of mid- and late-50's r'n'b duets. There are lots of well-recognized top pop hits here but what makes this collection exceptional is the number of tracks seldom, if ever, found on CD. Nestled between two huge Brook Benton and Dinah Washington duets are rarities such as Gene and Eunice's "Poco-Loco" and Don and Dewey's "I'm Leaving It All Up To You", a remake of which was taken to the top of the pop charts six years later by Dale and Grace.