This happened to me, too. There are 1 12 songs in my song list with a green tick in front of them. Some of those songs with a green tick show that they have been downloaded, and some of them don't, but those songs that show that I didn't order them are inexplicably downloaded. Then I checked the setting of "wife's automatic download", but it was not turned on, which was very confusing. Now come online to find the answer, I am afraid it is a virus.