Somebody help! Grey dotted circles next to songs on iTunes!

I've got an iPhone 5S (iOS 7.0.4). I downloaded someusic of the internet and I dragged it into my iTunes music library, I tried autofilling my iphone so all my new music from my iTunes music library would go on my iphone. Once I autofilled it grey dotted circles appeared next to some of my songs! So I went on iPhone>Music and ticked the sync music box so it would sync automatically and still there were grey dotted circles! Can anybody help!!?!?!