Hurricane Katrina ravaged their Gentilly neighborhood, but the eight members of the 30-year-old Dirty Dozen Brass Band remain undaunted. They've vowed to bring the true spirit of the Big Easy to each of their concerts. Bursting with spunk, their exciting mix of be-bop, R&B, jazz and soul has reinvented the brass band while preserving what the New York Times calls "a sense of communal jubilation." Taking the stage first is Troy "Trombone Shorty" Andrews and his own backup band, Orleans Avenue. This 23-year-old grew up in the fabled Treme neighborhood of the Crescent City, often playing to passersby in Jackson Square. Since then he's been dazzling audiences here and abroad with his exuberant virtuosity, moving Wynton Marsalis to say, "I'm his biggest fan."