It's just a beat. If it's enjoyable, then it's an enjoyable beat. It's content that might be evil. Words which dishonour God are evil. But words that dishonour God can go along with any music, and do.
Classical music can have evil content just as much as rock music.
The answer is yes, there is. It's not rock music itself, it's our culture. Have a look at contemporary TV, magazines, street talk, books and classical music. It all has the same content. I suggest absolutely not.