Etta James was discovered by Johnny Otis, best known for his '50's hit 'Willie and the Hand Jive', died January 19 at the age of 90. Johnny discovered several singers besides Etta such as Jackie Wilson, Hank Ballard, Little Richard among others. He wrote and produced numerous r&b hits.
here's a clip of Johnny Otis with Roy Buchanan:
http://www.youtube.com/watch?v=Al89UR2l3oI&feature=related
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"I didn't care what she didn't 'low--I would boogie-woogie anyhow" John Lee Hooker