(HUDSON, N.Y.) – Americana singer-songwriter Justin Townes Earle, son of famed alt-country legend Steve Earle, performs at Club Helsinki Hudson on Friday, December 9, 2011, at 9 p.m. Nashville songstress Tristen warms up the crowd for Earle. Justin Townes Earle won the Best New and Emerging Artist at the 2009 Americana Music Awards. His record,…