Good afternoon guys. I installed the iOS7 on my iPhone 5 and something very strange happened. After installation (via restore that erased all the songs I had), some musics appeared in the music native app that I never had (and never bought also did not know). In the app, the cloud icon appears next to the song, indicating that I can download them. When I log off of my iTunes Store account on the device (in Settings), the songs disappear, and when I login, they return. But I never bought music on iTunes. When I access my iPhone through iTunes on Mac, the songs do not appear there so I can't delete them. What might be happening? How can I remove these songs? There is an attach, a printscreen of the Music app on the iPhone. Sorry about my english. Cheers.