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John Kozan is the lead singer and trombonist of New York City's hottest swing sensation, Double Down. He has been featured as a singer on HBO’s The Sopranos. His vocal style is influenced by all the greats, from Frank Sinatra and Dean Martin, to Bobby Darin and Louis Prima – yet it remains uniquely his own. As a trombonist, he has studied with such greats as Slide Hampton, Art Baron, and Conrad Herwig.