Facebook added contacts to my iPhone, how do I get rid of them?

I looked at my contacts on my iphone and I had like a million new contacts of my friends from facebook that I had never put on there. Facebook just randomly gave me a bunch of contacts that I don't even want. And I can't delete them the normal way. Why did this happen and is there a way to get my contacts back to normal?

This happen Because you Have it Set So that your Phone Syncs your Contacts With Facebook Go into your Iphone Settings And From there you Should be able to Turn it off once you Turn it off you Should be able to Remove them All