The sounds of country music fill the air over the Grand Valley as Pinnacle Homes Country Jam USA 2006 gets underway in Mack, Colorado. The annual festival features four days of live music from 19 national recording acts. Plus, a variety of activities for the concert goers out at the Country Jam ranch. Jay Ketchum and the Texas Moon Band kicked things off about four o'clock Thursday afternoon followed by Miranda Lambert. Tonight Josh Gracin performs at 7:15 p.m. and headlining the first night is Chris Cagle taking the stage at 9:30 p.m. Other big name artists like Alan Jackson, Sugarland, Carry Underwood, and Gretchen Wilson will all be performing over the weekend.