Ashley Lambert, 18, Arizona, at the dedication service at the main stage. ...."Cornerstone" is the biggest rock festival for christian music. 2003 celebrated the 20th anniversary for the festival, and more than 25'000 kids camped out for a week on the Cornerstone farm in rural Illinois. ..Punk-rock and death-metal concerts are held to "spread the word of the Lord". Teenagers with nose-rings and punk-haircuts abstain collectively from sex, alcohol or drugs and campaign against issues such as abortion or "gay lifestyles" .