KJ Hammerstein, a musician in South Bend, IN, specializes in Drums, Bass, Keyboards, Saxophone, Guitar and Backing vocals. 
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KJ has also shared the stage with a variety of international artists. Some groups he has performed with include The Drifters (Charlie Thomas), The Tokens, The Chiffons, Gene Chandler, The Reflections, Sonny Geraci (Climax, the Outsiders), The Coasters, The Crystals, The Dubs, The Platters (Herb Reed), the Marcels.

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