In the last two years, the Black Keys have had four huge hit singles from their albums Brothers and El Camino. But their recent popularity is only a small part of their story, which began a couple decades ago when two young boys in Ohio met in grade school. If you only know this duo from "Lonely Boy," maybe it's time to catch up with the history of the Black Keys. Theirs is an unlikely tale of success -- one that involved them spending several years honing their craft before finding a mainstream audience.
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