How to fix my contacts on my iphone?

I just got the iphone 5 and it's been great up until this morning. Somehow my contacts section is showing everyone i'm friends with on facebook. I don't want this to be the case! What happened to my old contacts list? Help!

Added (1). Awesome thank you Mario!

Go in Contacts, now in the top left corner there should be groups. Uncheck facebook.

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