Christian Serpas and Ghost Town bucked the odds. The enduring Mandeville country-rock band, featuring three-fourths of its original membership, will celebrate its twentieth anniversary July 12 at the Rivershack in Jefferson. “Bands are such a fragile thing,” mused singer, guitarist and songwriter Serpas. “To get guys who can get along and have the same vision, it’s rare.” 

During Ghost Town’s two decades, the band relea...