Country musician Chris Young opened the 2012 Douglas County Fair headline acts Tuesday night by emphatically stating he came to party. The 27-year-old Tennessee native left little doubt he would keep that promise by taking the stage with his song, “Save Water, Drink Beer.” Many in the crowd enthusiastically raised beer-filled plastic cups. Just to make sure everyone was on the same page, Young had one side of the audience yell “save water” and the other “drink beer.” Young, the product of the television singing competition “Nashville Stars,” is a singer-songwriter whom fans describe as an energetic musician on the …