Christian rock festival in Morocco :: NYT

This is an odd one:

"It's not my business," said Mr. Youness, an 18-year-old Muslim and heavy-metal fan. "I just want to listen to the music."

But Mr. Boudde had a question: "What are 'evangelicals'?"

Last weekend's concert, organized by several American evangelical groups and the Moroccan government and called the Friendship Fest, was staged despite criticism from Moroccan Islamic groups and opposition political parties. Seven American Christian bands alternated with Moroccan groups. The event drew more than 15,000 Moroccans a day, police officials estimated, as well as dozens of evangelical Christians from around the United States.

The concert was about more than power chords for Jesus. From the evangelists' perspective, it was an opportunity to gain a foothold in a relatively liberal Muslim country and give religious priorities a more central role into American foreign policy.

What are 'evangelicals'? I should know, but I don't really. They are a source of puzzlement for me.

Thanks to Soccer Dad for the link.