How Much Does It Cost to get into Summerfest Concerts?

Okay, I'm going to See Hawthorne Heights at Summerfest in Wisconsin. Does anybody know how much it costs to get in? They play at the U.S Cellular Conncetion Stage.How Much Does It Cost to get into Summerfest Concerts?$7 before 7 O' Clock and $15 after seven. signed Brent the best